Neck Knives: your reliable daily companion

ExtremaRatio - Aero FX - Black Nitrogen & Black Lime Aluminium - fixed-blade knife

The lines are stripped down to the essentials; the profile is clean and continuous. This isn’t an aesthetic choice, but the result of a function-oriented design. Every element exists for a specific reason; everything else has been eliminated.

The skeletonized full-tang construction and 4.8 mm blade thickness reflect a different approach: lightness where needed, strength where it counts. The 80 mm blade and 191 mm overall length define a compact yet uncompromising tool.

The AERO FX is built around materials selected to ensure durability, reliability, and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade with a MIL-C-13924 burnished finish, designed to offer corrosion resistance, good edge retention, and ease of resharpening.

The carrying system consists of a dual-configuration Kydex sheath: an ultra-flat, slim solution for discreet carry and an additional interface to expand attachment options. The configuration can be adapted using the Malice clip or paracord, both of which are included.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Full tang, Nitrogen-alloyed steel
Blade Finish: MIL-C-13924 burnished
Handle: Anodized Anticorodal aluminum
Blade Length: 80mm.
Blade thickness: 4.8 mm.
Overall length: 191 mm.
Weight: 117 g.
Sheath: thermoformed Kydex, can be worn around the neck or on a belt using the included Malice clips
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

ER-AEFX-BLIM

€176.23

Only 4 left

Only 4 left
ExtremaRatio - 185° RAO knife - PRIVATE COLLECTION - Knife

PREVIOUSLY PURCHASED KNIFE, PRIVATE COLLECTION
* Origin: acquired from private owner - SERIAL CK0191S - produced in 2021
* Condition: overall very good condition (see photos)
* Market availability: no longer in production in this unit-marked version
* Sharpening: factory edge
* Blade marks: none
* Handle marks: none
* Box: present, slightly damaged
* Sheath: included
* Manuals, certificates and warranty: included
* Checked and certified by our internal laboratory

Folding knife made according to specifications requested by the Italian Army unit 185th RAO (Regiment for Target Acquisition) and currently in service with the same unit. The service version differs from the civilian one only by the complete absence of writings or logos on the blade.

HISTORICAL NOTES ON THE UNIT:
The 185th RAO of the "Folgore" is a unit with ancient traditions, yet relatively new in its current form. It was established on 3 April 2000 following the reorganization of the 185th Paratroopers Artillery Regiment. Based in Livorno, it is an atypical artillery unit currently included within the Special Forces framework.

Composed entirely of volunteer personnel, the 185th RAO selects its members through physical tests and a qualification course structured in modules of increasing difficulty. The tasks assigned to RAO operators are numerous and highly sensitive: they involve gathering information on enemy targets and relaying it to command. More generally, this can be described as reconnaissance in sensitive areas.

"It is therefore clear," the Army emphasizes, "that the activity of the acquisition operator takes place mainly in hostile territory, in small self-sufficient teams operating in isolation."

RAO paratroopers are specialists in infiltration and exfiltration techniques and are able to operate in the field for up to 8–10 days without external resupply. They know how to avoid capture, escape and evade from enemy-controlled areas and, above all, how to identify, define and assess strategically relevant targets. Since 2002, the year of its reorganization, detachments of the 185th Regiment have operated in all major operational theaters: from the Balkans to Afghanistan and Iraq. In these areas they mainly carry out medium- and long-range reconnaissance and surveillance activities within the area of responsibility of the Italian contingent.

Intended use: military/tactical
Type of production: industrial
Blade production: Italy
Blade: N690Co stainless steel 58/60HRC
Blade treatment: MIL-C 13924 black coating
Handle: anodized anticorodal aluminum 4.5mm
Blade length: 118mm
Blade thickness: 6.3mm
Closed length: 142mm
Total length: 261mm
Weight: 335g
Lock: modified front lock with additional threaded safety pin
Clip: none
Sheath: tactical nylon MOLLE-compatible, suitable for both closed and open knife use
Notes: diamond pocket sharpener included

ER-RAO-BK-CP

€340.16

Only 1 left

Only 1 left
ExtremaRatio - Aero FX - Black Nitrogen & Black Orange Aluminium - fixed-blade knife

The lines are stripped down to the essentials; the profile is clean and continuous. This isn’t an aesthetic choice, but the result of a function-oriented design. Every element exists for a specific reason; everything else has been eliminated.

The skeletonized full-tang construction and 4.8 mm blade thickness reflect a different approach: lightness where needed, strength where it counts. The 80 mm blade and 191 mm overall length define a compact yet uncompromising tool.

The AERO FX is built around materials selected to ensure durability, reliability, and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade with a MIL-C-13924 burnished finish, designed to offer corrosion resistance, good edge retention, and ease of resharpening.

The carrying system consists of a dual-configuration Kydex sheath: an ultra-flat, slim solution for discreet carry and an additional interface to expand attachment options. The configuration can be adapted using the Malice clip or paracord, both of which are included.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Full tang, Nitrogen-alloyed steel
Blade Finish: MIL-C-13924 burnished
Handle: Anodized Anticorodal aluminum
Blade Length: 80mm.
Blade thickness: 4.8 mm.
Overall length: 191 mm.
Weight: 117 g.
Sheath: thermoformed Kydex, can be worn around the neck or on a belt using the included Malice clips
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

ER-AEFX-BKOR

€176.23

Only 1 left

Only 1 left
ExtremaRatio - Aero FX - Black Nitrogen & Mud Orange Aluminium - fixed-blade knife

The lines are stripped down to the essentials; the profile is clean and continuous. This isn’t an aesthetic choice, but the result of a function-oriented design. Every element exists for a specific reason; everything else has been eliminated.

The skeletonized full-tang construction and 4.8 mm blade thickness reflect a different approach: lightness where needed, strength where it counts. The 80 mm blade and 191 mm overall length define a compact yet uncompromising tool.

The AERO FX is built around materials selected to ensure durability, reliability, and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade with a MIL-C-13924 burnished finish, designed to offer corrosion resistance, good edge retention, and ease of resharpening.

The carrying system consists of a dual-configuration Kydex sheath: an ultra-flat, slim solution for discreet carry and an additional interface to expand attachment options. The configuration can be adapted using the Malice clip or paracord, both of which are included.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Full tang, Nitrogen-alloyed steel
Blade Finish: MIL-C-13924 burnished
Handle: Anodized Anticorodal aluminum
Blade Length: 80mm.
Blade thickness: 4.8 mm.
Overall length: 191 mm.
Weight: 117 g.
Sheath: thermoformed Kydex, can be worn around the neck or on a belt using the included Malice clips
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

ER-AEFX-MUD

€184.43

Only 1 left

Only 1 left
ExtremaRatio - Aero FX - Black Nitrogen & Forest Green Orange Aluminum - fixed-blade knife

The lines are stripped down to the essentials; the profile is clean and continuous. This isn’t an aesthetic choice, but the result of a function-oriented design. Every element exists for a specific reason; everything else has been eliminated.

The skeletonized full-tang construction and 4.8 mm blade thickness reflect a different approach: lightness where needed, strength where it counts. The 80 mm blade and 191 mm overall length define a compact yet uncompromising tool.

The AERO FX is built around materials selected to ensure durability, reliability, and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade with a MIL-C-13924 burnished finish, designed to offer corrosion resistance, good edge retention, and ease of resharpening.

The carrying system consists of a dual-configuration Kydex sheath: an ultra-flat, slim solution for discreet carry and an additional interface to expand attachment options. The configuration can be adapted using the Malice clip or paracord, both of which are included.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Full tang, Nitrogen-alloyed steel
Blade Finish: MIL-C-13924 burnished
Handle: Anodized Anticorodal aluminum
Blade Length: 80mm.
Blade thickness: 4.8 mm.
Overall length: 191 mm.
Weight: 117 g.
Sheath: thermoformed Kydex, can be worn around the neck or on a belt using the included Malice clips
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

ER-AEFX-GREEN

€184.43

Only 1 left

Only 1 left
ExtremaRatio - Aero FX - Black Nitrogen & Blue Orange Aluminum - fixed-blade knife

The lines are stripped down to the essentials; the profile is clean and continuous. This isn’t an aesthetic choice, but the result of a function-oriented design. Every element exists for a specific reason; everything else has been eliminated.

The skeletonized full-tang construction and 4.8 mm blade thickness reflect a different approach: lightness where needed, strength where it counts. The 80 mm blade and 191 mm overall length define a compact yet uncompromising tool.

The AERO FX is built around materials selected to ensure durability, reliability, and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade with a MIL-C-13924 burnished finish, designed to offer corrosion resistance, good edge retention, and ease of resharpening.

The carrying system consists of a dual-configuration Kydex sheath: an ultra-flat, slim solution for discreet carry and an additional interface to expand attachment options. The configuration can be adapted using the Malice clip or paracord, both of which are included.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Full tang, Nitrogen-alloyed steel
Blade Finish: MIL-C-13924 burnished
Handle: Anodized Anticorodal aluminum
Blade Length: 80mm.
Blade thickness: 4.8 mm.
Overall length: 191 mm.
Weight: 117 g.
Sheath: thermoformed Kydex, can be worn around the neck or on a belt using the included Malice clips
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

ER-AEFX-BLUE

€184.43

Only 1 left

Only 1 left
ExtremaRatio - Satre - Yellow Nitrogen - Fixed-Blade Neck Knife

SATRE is a compact fixed-blade knife developed in collaboration with Daniele Dal Canto, a guide with the AIGS (Italian Association of Survival Guides). It was created to deliver high performance in a compact format, designed for survival, bushcraft, urban use, and as a backup tool. The range has been updated with new variants in high-visibility Nitrogen steel.

SATRE features a skeletonized full-tang construction that allows the handle to be wrapped in Paracord, adapting it to the user’s needs. Its compact size and the pre-formed black Kydex sheath, equipped with metal eyelets for ambidextrous, vertical, or horizontal carrying configurations on various mounts, make it suitable for use as a neck knife, backup knife, or primary tool in a survival kit.

The range now includes versions in Nitrogen steel (Orange and Yellow), characterized by high corrosion resistance, ease of resharpening, and high visibility in the field.

These are joined by models in N690Co steel (Black, Expeditions, and Stone Washed), a historic benchmark of the series for its overall balance between performance and operational handling, and the variant in Böhler S600 steel (64 HRC), designed for maximum hardness and edge retention.

Intended use: Sport / Light Utility

Production type: Industrial
Country of origin: Italy
Blade: Nitrogen steel
Blade finish: High-visibility treatment
Handle: Nitrogen steel
Blade length: 70 mm
Blade thickness: 5 mm
Overall length: 163 mm
Weight: 75 g
Sheath: Thermoformed Kydex
Packaging: Cardboard box with Extrema Ratio logos
Notes: Version with high corrosion resistance and high visibility

ER-SAT-YN

€131.15

Only 3 left

Only 3 left
ExtremaRatio - Satre - Orange Nitrogen - Fixed-Blade Neck Knife

SATRE is a compact fixed-blade knife developed in collaboration with Daniele Dal Canto, a guide with the AIGS (Italian Association of Survival Guides). It was created to deliver high performance in a compact format, designed for survival, bushcraft, urban use, and as a backup tool. The range has been updated with new variants in high-visibility Nitrogen steel.

SATRE features a skeletonized full-tang construction that allows the handle to be wrapped in Paracord, adapting it to the user’s needs. Its compact size and the pre-formed black Kydex sheath, equipped with metal eyelets for ambidextrous, vertical, or horizontal carrying configurations on various mounts, make it suitable for use as a neck knife, backup knife, or primary tool in a survival kit.

The range now includes versions in Nitrogen steel (Orange and Yellow), characterized by high corrosion resistance, ease of resharpening, and high visibility in the field.

These are joined by models in N690Co steel (Black, Expeditions, and Stone Washed), a historic benchmark of the series for its overall balance between performance and operational handling, and the variant in Böhler S600 steel (64 HRC), designed for maximum hardness and edge retention.

Intended use: Sport / Light Utility

Production type: Industrial
Country of origin: Italy
Blade: Nitrogen steel
Blade finish: High-visibility treatment
Handle: Nitrogen steel
Blade length: 70 mm
Blade thickness: 5 mm
Overall length: 163 mm
Weight: 75 g
Sheath: Thermoformed Kydex
Packaging: Cardboard box with Extrema Ratio logos
Notes: Version with high corrosion resistance and high visibility

ER-SAT-ON

€131.15

Only 1 left

Only 1 left
ExtremaRatio - Versa Satin - Utility Neck Knife - Knife

Versa combines innovative design with unparalleled functionality. The name “Versa” perfectly embodies the characteristics of this knife: its versatility makes it suitable for a variety of situations, showing its adaptability both in urban environments as an EDC (Every Day Carry) knife and in more adventurous settings such as outdoor, survival, bushcraft, hunting and even tactical scenarios. It is also ideal as a backup knife. This knife is ready to meet every need by combining style and practicality in one tool. Versa comes in two distinct models: Versa Satin, perfect for everyday use and Versa Expeditions, more suitable in outdoor, survival and bushcraft settings.

Intended Use: Neck Knife / Hiking / Utility

Type of production: industrial
Country of manufacture: Italy
Blade: full tang, stainless steel N690Co at 58HRC
Blade finish: satin finish
Handle: monolithic, pierced, stainless steel N690Co at 58HRC
Blade length: 80mm.
Blade thickness: 6.3mm.
Total length: 180mm.
Weight: 110g.
Sheath: made of Kydex, for neck
Packaging: cardboard box with Extrema Ratio logos
Notes: /

ER-VER-SA

€150.82

Only 2 left

Only 2 left

Rating:
80%
4
ExtremaRatio - Versa Expeditions - Utility Neck Knife - Knife

Versa combines innovative design with unparalleled functionality. The name “Versa” perfectly embodies the characteristics of this knife: its versatility makes it suitable for a variety of situations, showing its adaptability both in urban environments as an EDC (Every Day Carry) knife and in more adventurous settings such as outdoor, survival, bushcraft, hunting and even tactical scenarios. It is also ideal as a backup knife. This knife is ready to meet every need by combining style and practicality in one tool. Versa comes in two distinct models: Versa Satin, perfect for everyday use and Versa Expeditions, more suitable in outdoor, survival and bushcraft settings.

Intended Use: Neck Knife / Hiking / Utility

Type of production: industrial
Country of manufacture: Italy
Blade: full tang, stainless steel N690Co at 58HRC
Blade finish: burnishing MIL-C-13924 with Dark Stone finish
Handle: monolithic, pierced, stainless steel N690Co at 58HRC
Blade length: 80mm.
Blade thickness: 6.3mm.
Total length: 180mm.
Weight: 110g.
Sheath: made of Kydex, for neck
Packaging: cardboard box with Extrema Ratio logos
Notes: Firesteel and kydex sheath included in package

ER-VER-EX

€175.41

Only 1 left

Only 1 left

Rating:
90%
4.5
ExtremaRatio - KIRI Neck Knife - N690Co Dark Stone Washed - Kiridashi Knife

The kiridashi is a traditional Japanese cutting tool that has ancient roots in culture and tradition; Extrema Ratio has revised according to its style this knife belonging to Japanese tradition giving it a more tactical look than the original. While retaining the characteristic chisel rounding, KIRI has a special tip designed to achieve a high penetration efficiency.

Extrema Ratio KIRI is available in Dark Stone and Satin finishes, both made of Böhler N690 steel hardened to 58HRC. The handle consists of two black-colored anodized anticorodal aluminum grips. The preshaped Kydex sheath is equipped with metal eyelets that allow paracord lanyard to be attached to MOLLE system platforms as well.

Intended use: Neck knife / Utility

Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58/60HRC
Blade treatment: Dark Stone Washed
Handle: stainless steel N690Co 58/60HRC
Blade length: 60mm.
Blade thickness: 5mm.
Total length: 190mm.
Weight: 112g.
Sheath: in Kydex, for neck
Packaging: cardboard box with Extrema Ratio logos
Notes: possibility of using the scabbard with Ulti-Clip, M.O.L.L.E. or Tek-Lok systems (may be purchased separately)

ER-KIRI-DSW

€225.41

Only 1 left

Only 1 left
ExtremaRatio - KIRI Neck Knife - N690Co Satin - Kiridashi Knife

The kiridashi is a traditional Japanese cutting tool that has ancient roots in culture and tradition; Extrema Ratio has revised according to its style this knife belonging to Japanese tradition giving it a more tactical look than the original. While maintaining the characteristic chisel rounding, KIRI has a special tip designed to achieve a high penetration efficiency.

Extrema Ratio KIRI is available in Dark Stone and Satin finishes, both made of Böhler N690 steel hardened to 58HRC. The handle consists of two black-colored anodized anticorodal aluminum grips. The preshaped Kydex sheath is equipped with metal eyelets that allow paracord lanyard to be attached to MOLLE system platforms as well.

Intended use: Neck knife / Utility

Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58/60HRC
Blade treatment: satin finish
Handle: stainless steel N690Co 58/60HRC
Blade length: 60mm.
Blade thickness: 5mm.
Total length: 190mm.
Weight: 112g.
Sheath: in Kydex, for neck
Packaging: cardboard box with Extrema Ratio logos
Notes: possibility of using the scabbard with Ulti-Clip, M.O.L.L.E. or Tek-Lok systems (may be purchased separately)

ER-KIRI-SA

€220.49

Only 1 left

Only 1 left
ExtremaRatio - Satre Expeditions - Utility Neck Knife - Knife

Satre Expeditions, as well as the Satre model from which it derives, is a fixed blade knife of small dimensions, light and extremely resistant. Given its characteristics, it can be used in a wide range of disciplines and uses or as part of an EDC (Every Day Carry) kit.

It has been designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S. (Federazione italiana survival sportivo e sperimentale) instructor. In Neck Knife mode, through the use of a 550 paracord lanyard, it is possible to hold it around the neck keeping the knife vertical with the handle facing downwards.

The metal eyelets on the sheath, made of pre-shaped Kydex, allow the application of both the lanyard and the accessory holder.

The full-tang skeletonized structure, allows you to customize the knife using Paracord as a coating for the handle.

Satre Expeditions uses Böhler N690 steel heat treated to 58 HRC with MIL-C-13924 burnishing and stone washed surface treatment (Dark Stone finish). It comes with a desert-colored pre-formed kydex sheath on which you can attach the Firesteel for lighting fires (provided inside the box).

Intended use: Neck knife / Hiking / Utility

Production type: industrial
Country of production: Italy
Blade: Stainless steel N690Co 58
Blade finish: Burnishing MIL-C-13924 with Dark Stone finish
Handle: Stainless steel N690Co 58
Blade length: 70mm.
Blade thickness: 5mm.
Total length: 163mm.
Weight: 78g.
Scabbard: Kydex, for neck.
Packaging: Cardboard box with Extrema Ratio logos.
Notes:Designed and developed thanks to the collaboration with the instructor Daniele del Canto of F.I.S.S.S. (Federazione Italiana Survival Spotivo e Sperimentale).

ER-SAT-EX

€153.28

Only 1 left

Only 1 left

Rating:
100%
5
ExtremaRatio - Satre - N690 Black - Neck Knife - Knife

Satre is a small, light and extremely resistant fixed blade knife. Given its characteristics, it is used in a wide range of disciplines and uses ranging from survival activity, bushcraft or as an element of an EDC (Every Day Carry) kit.

It was designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S.S. (Italian Federation of Sports and Experimental Survival).

In Neck Knife mode, through the use of a paracord 550 cord, it is possible to keep it around the neck by keeping the knife vertically with the handle facing downwards. The metal eyelets on the sheath made of pre-shaped Kydex allow the application of both the lanyard and the accessory holder.

The full-tang skeletonized structure allows you to customize the knife using paracord as a coating for the handle

This Black version uses the Böhler N690 heat treated at 58 HRC. This material is chosen for its resistance to oxidation, the durability of the wire and above all the reliability it has shown over the years.

Intended use: Neck / Hiking / Utility Knife

Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58 / 60HRC
Blade treatment: Black
Handle: stainless steel N690Co 58 / 60HRC
Blade length: 70mm.
Blade thickness: 5mm.
Total length: 163mm.
Weight: 78 g.
Sheath: in Kydex, for neck
Packaging: Cardboard box with Extrema Ratio logos
Note: possibility to use the sheath with Ulti-Clip systems, M.O.L.L.E. o Tek-Lok (available separately)

ER-SAT-BL

€133.61

Only 1 left

Only 1 left

Rating:
87%
4.4
ExtremaRatio - Satre - S600 Black EXP Dark - Neck Knife

Satre is a fixed blade knife of small dimensions, light and extremely resistant. Given its characteristics, it can be used in a wide range of disciplines and uses ranging from survival activities, bushcraft or as an element of an EDC (Every Day Carry) kit.

It has been designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S. (Federazione italiana survival sportivo e sperimentale) instructor.

In Neck Knife mode, through the use of a 550 paracord lanyard, it is possible to hold it around the neck keeping the knife vertical with the handle facing downwards. The metal eyelets on the sheath, made of pre-shaped Kydex, allow the application of both the lanyard and the accessory holder.

The full-tang skeleton structure allows to personalize the knife using the Paracord as a coating for the handle.

The Black S600 version uses Böhler S600 steel. This steel is used in industrial manufacturing to make metalworking tools and in mold making.

The high content of Molybdenum, Tungsten and a good presence of Vanadium in its chemical composition, give it excellent qualities of hardness, wear resistance and toughness. The presence of Cobalt favors the formation of small carbides uniformly distributed, a characteristic that enhances and elevates wear resistance.

Satre S600 is hardened and cryogenically treated, thus reaching an exceptional hardness of 64 HRC. This gives it great wear resistance and the ability to guarantee the cutting edge of the wire for a long time.

Böhler S600 has 4.5% Chromium, which makes it a carbon steel and therefore can cause rust and oxidation if neglected. To better protect it from atmospheric agents, we have chosen the new external coating EXP DARK.

The high hardness and resistance to wear and abrasion, make this steel not easy to sharpen.

Intended Use: Neck Knife / Hiking / Utility

Production type: industrial
Country of production: Italy
Blade: Carbon steel Bohler S600 64HRC
Blade treatment: Black EXP DARK
Handle:in carbon steel Bohler S600 64HRC
Blade length: 70mm.
Blade thickness: 5mm.
Total length: 163mm.
Weight: 78g.
Scabbard: Kydex, for neck.
Packaging: Cardboard box with Extrema Ratio logos.
Notes: possibility to use the scabbard with Ulti-Clip, M.O.L.L.E. or Tek-Lok systems (available separately).

ER-SAT-S6

€150.00

Only 1 left

Only 1 left

Rating:
98%
4.9
ExtremaRatio - Satre - N690 Stone Washed - Neck Knife

Satre is a fixed blade knife of small dimensions, light and extremely resistant. Given its characteristics, it can be used in a wide range of disciplines and uses ranging from survival activities, bushcraft or as an element of an EDC (Every Day Carry) kit.

It has been designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S. (Federazione italiana survival sportivo e sperimentale) instructor.

In Neck Knife mode, through the use of a 550 paracord lanyard, it is possible to hold it around the neck keeping the knife vertical with the handle facing downwards. The metal eyelets on the sheath, made of pre-shaped Kydex, allow the application of both the lanyard and the accessory holder.

The full-tang skeleton structure, allows to personalize the knife using the Paracord as a coating for the handle.

The Stone Washed version uses Böhler N690 heat treated to 58 HRC. This material is chosen for its ability to resist oxidation, the durability of the edge and above all the reliability it has shown over the years.

Intended Use: Neck Knife / Hiking / Utility

Type of production: industrial
Country of production: Italy
Blade: Stainless steel N690Co 58/60HRC
Blade Treatment: Stone Washed
Handle: Stainless steel N690Co 58/60HRC
Blade length: 70mm.
Blade thickness: 5mm.
Total lenght: 163mm.
Weight: 78g.
Scabbard: Kydex, for neck.
Packaging: Cardboard box with Extrema Ratio logos.
Notes: possibility to use the scabbard with Ulti-Clip, M.O.L.L.E. or Tek-Lok systems (available separately).

ER-SAT-SW

€128.69

Only 1 left

Only 1 left

Rating:
94%
4.7
ExtremaRatio - N.K.3 Karambit Desert Warfare - Neck Knife - NK3K - knife

NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

intended use: Neck Knife
type of production: Industrial
production country: Italy
Blade: stainless steel N690Co 58 / 60HRC
Blade treatment: Desert Warfare
manicatura: stainless steel N690Co 58 / 60HRC
blade length: 70mm.
blade thickness: 6.3mm.
total length: 172mm.
Weight: 95g.
Sheath: Kydex, neck
Package: Cardboard box with logos Extrema Ratio
Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

12636

€172.13

Only 1 left

Only 1 left
ExtremaRatio - N.K.3 Karambit Black - Neck Knife - NK3K - knife

NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

intended use: Neck Knife
type of production: Industrial
production country: Italy
Blade: stainless steel N690Co 58 / 60HRC
Blade treatment: Black PVD cat. MIL-C-13924
manicatura: stainless steel N690Co 58 / 60HRC
blade length: 70mm.
blade thickness: 6.3mm.
total length: 172mm.
Weight: 95g.
Sheath: Kydex, neck
Package: Cardboard box with logos Extrema Ratio
Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

ER-NK3K-BK

€170.49

Only 1 left

Only 1 left

Rating:
91%
4.6
ExtremaRatio - N.K.3 Desert Warfare - Neck Knife - NK3 - knife

NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

intended use: Neck Knife
type of production: Industrial
production country: Italy
Blade: stainless steel N690Co 58 / 60HRC
Blade treatment: Black PVD cat. MIL-C-13924
manicatura: stainless steel N690Co 58 / 60HRC
blade length: 70mm.
blade thickness: 6.3mm.
total length: 153mm.
Weight: 82g.
Sheath: Kydex, neck
Package: Cardboard box with logos Extrema Ratio
Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

ER-NK3-DW

€146.72

Only 1 left

Only 1 left
ExtremaRatio - N.K.3 Black - Neck Knife - NK3 - knife

NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

intended use: Neck Knife
type of production: Industrial
production country: Italy
Blade: stainless steel N690Co 58 / 60HRC
Blade treatment: Black PVD cat. MIL-C-13924
manicatura: stainless steel N690Co 58 / 60HRC
blade length: 70mm.
blade thickness: 6.3mm.
total length: 153mm.
Weight: 82g.
Sheath: Kydex, neck
Package: Cardboard box with logos Extrema Ratio
Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

ER-NK3-BK

€142.62

Only 1 left

Only 1 left

Rating:
100%
5
ExtremaRatio - N.K.3 Stone Washed - Neck Knife - NK3 - knife

NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

intended use: Neck Knife
type of production: Industrial
production country: Italy
Blade: stainless steel N690Co 58 / 60HRC
Blade treatment: Stone Washed
manicatura: stainless steel N690Co 58 / 60HRC
blade length: 70mm.
blade thickness: 6.3mm.
total length: 153mm.
Weight: 82g.
Sheath: Kydex, neck
Package: Cardboard box with logos Extrema Ratio
Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

12450

€132.79

Only 1 left

Only 1 left

Rating:
91%
4.6
ExtremaRatio - N.K.2 Black - Neck Knife - NK2

NK2 is a small knife that extends the family of the Extrema Ratio neck knives.

It differs from the model NK1 for blade tip tanto styled and for the increased thickness. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

On the back it is formed a drain for the positioning of the thumb or forefinger depending on use. The structure enables both use for very effective cutting work or for small precision work.The quick release Kydex sheath is supplied with paracord for carrying on the neck.

Intended use: Neck Knife
Type of production: Industrial
Production country: Italy
Blade: stainless steel N690Co 58 / 60HRC
Blade treatment: Black PVD cat. MIL-C-13924
Handle: stainless steel N690Co 58 / 60HRC
Blade length: 50mm.
Blade thickness: 6.3mm.
Total length: 129mm.
Weight: 69g.
Sheath: Kydex, neck
Package: Cardboard box with Extrema Ratio logo
Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

ER-NK2-BK

€129.51

Only 99 left

Only 99 left
ExtremaRatio - N.K.2 Stone Washed - Neck Knife - NK2

NK2 is a small knife that extends the family of the neck knives Extrema Ratio.

It differs from the model NK1 for blade-type "time" and for the increased thickness. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

intended use: Neck Knife
type of production: Industrial
production country: Italy
Blade: stainless steel N690Co 58 / 60HRC
Blade treatment: Stone Washed
manicatura: stainless steel N690Co 58 / 60HRC
blade length: 50mm.
blade thickness: 6.3mm.
total length: 129mm.
Weight: 69g.
Sheath: Kydex, neck
Package: Cardboard box with logos Extrema Ratio
Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

ER-NK2-SW

€123.77

Only 1 left

Only 1 left

Rating:
87%
4.4
ExtremaRatio - N.K.1 Desert Warfare - Neck Knife

Intended Use: Neck Knife

Type of production: Industrial
Production Blade: Italy
Blade: Stainless steel N690Co 58/60HRC
Treatment Blade: Desert Warfare
Handle material: stainless steel N690Co 58/60HRC
Blade length: 40mm.
Blade thickness: 3mm.
Length closed: -
Overall length: 129mm.
Thick when closed: -
Balancing: -
Weight: 55g.
Closure: -
Clip: -
Sheath: Kydex, Neck
Packaging: Cardboard box with logos Extrema Ratio
Note: use of the sheath with MOLLE systems or Tek-Lok (not included in the package)

ER-NK1-DW

€142.62

Only 1 left

Only 1 left

Rating:
93%
4.7
ExtremaRatio - N.K.1 Stone Washed - Neck Knife

Intended Use: Neck Knife

Type of production: Industrial
Production Blade: Italy
Blade: Stainless steel N690Co 58/60HRC
Treatment Blade: Stone Washed
Handle material: stainless steel N690Co 58/60HRC
Blade length: 40mm.
Blade thickness: 3mm.
Length closed: -
Overall length: 129mm.
Thick when closed: -
Balancing: -
Weight: 55g.
Closure: -
Clip: -
Sheath: Kydex, Neck
Packaging: Cardboard box with logos Extrema Ratio
Note: use of the sheath with MOLLE systems or Tek-Lok (not included in the package)

ER-NK1-SW

€131.15

Only 1 left

Only 1 left

Rating:
87%
4.4
ExtremaRatio - N.K.1 Testudo - Neck Knife

Intended Use: Neck Knife

Type of production: Industrial
Production Blade: Italy
Blade: Stainless steel N690Co 58/60HRC
Treatment Blade: Testudo
Handle material: stainless steel N690Co 58/60HRC
Blade length: 40mm.
Blade thickness: 3mm.
Length closed: -
Overall length: 129mm.
Thick when closed: -
Balancing: -
Weight: 55g.
Closure: -
Clip: -
Sheath: Kydex, Neck
Packaging: Cardboard box with logos Extrema Ratio
Note: use of the sheath with MOLLE systems or Tek-Lok (not included in the package)

ER-NK1-BK

€139.34

Only 1 left

Only 1 left

Rating:
100%
5
ExtremaRatio - Dicok TS - EXP Dark Nitrogen - Diving Compact Knife - diving knife

DICOK TS evolves the DICOK design with technical updates aimed at professional underwater use. Developed with industry experts, it is designed to ensure reliability and safety in the marine environment.

The blade incorporates a line cutter for quick action even in critical conditions. Nitrogen steel replaces the previous N690Co, offering greater resistance to oxidation and corrosion in saline environments. The new EXP Dark coating further improves protection against corrosive agents while maintaining anti-reflective properties.

The steel structure was chosen to ensure superior hardness, edge retention, and structural strength compared to titanium, essential characteristics for operational use.

Supplied with a Kydex sheath and paracord for belt attachment, MOLLE and webbing systems, and a fiberglass-reinforced nylon handle with a non-slip finish that is ergonomic and safe even when wearing diving gloves.

Intended use: Diving knife

Type of production: Industrial
Country of production: Italy
Blade: Nitrogen steel
Blade finish: EXP Dark coating
Handle: glass fiber reinforced nylon
Blade length: 81mm.
Blade thickness: 4mm.
Total length: 196 mm.
Weight: 150 g.
Sheath: Kydex neck sheath, compatible with various attachment systems.
Packaging: Cardboard box with Extrema Ratio logos.
Notes: To maintain performance over time, we recommend rinsing, drying, and lubricating the knife periodically after use in the sea.

ER-DIC-TS

€113.93

Only 0 left

Only 0 left

Out of stock
ExtremaRatio - Requiem Evo Dark - 250pcs Limited Edition - CPM-MagnaCut & Black G10 - tactical knife

NEW STRUCTURE: Full Tang
NEW STEEL: CPM-MagnaCut
NEW HANDLES: Black G10
SAME EXTREMA RATIO QUALITY IN ONLY 250 PIECES

* Professional when needed. Unconventional when required.
* Only 250 pieces. No replicas. No hesitation.
* Those who own it join an exclusive group.
* Those who use it know what it means to trust their tool.
* Born from the rigors of the operational world. Evolved to dominate unpredictability.

REQUIEM EVO DARK is the full tang version of the famous Requiem, enhanced in every aspect: more robust structure, new spear point profile for superior penetration and clean cuts, black G10 scales with a futuristic design.

CPM-MagnaCut steel, the ultimate evolution in materials for real-world tools: durable, sharp, and tough even under stress. A compact, relentless knife, perfect for both the operational theater and the urban environment.

Two contexts. Two sheaths:
* Aspis (EDC Ready): Safe transport, quick draw, concealability.
Compatible with M.O.L.L.E. systems, it is perfect for everyday use, prepping, or urban adventure.
* Kydex (Tactical Setup): Designed for the MOLLE system, it easily adapts to Ulticlip, Belt Clip, Paracord, and alternative configurations.

Intended use: Tactical / Multipurpose

Type of production: Industrial
Country of production: Italy
Blade: full tang in CPM-MagnaCut steel
Blade treatment: Anti-reflective burnishing with engravings
Handle: Black G10 with CNC machining
Blade length: 116mm.
Blade thickness: 4mm.
Total length: 237mm.
Weight: 135g.
Sheath: ASPIS nylon with two multi-position clips, M.O.L.L.E. compatible + thermoformed Kydex
Packaging: Cardboard box with Extrema Ratio logos and Limited Edition plaque with progressive knife numbering
Notes: Limited edition, numbered to only 250 pieces worldwide

ER-REQ-EVOD

€0.00

Only 0 left

Only 0 left

Out of stock
ExtremaRatio - Satre - S600 Black EXP Dark - PRIVATE COLLECTION - Neck Knife - Knife

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Collected from a private individual, previously purchased and used.
* Condition: Overall in very good condition with a few minor cosmetic signs of use that do not affect its functionality
* Commercially available: Commercially available.
* Sharpening: Factory.
* Marks on blade: Small aesthetic marks from use.
* Marks on handle: A couple of small cosmetic marks.
* Box: Present
* Scabbard: Present
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory

Satre is a small, lightweight and extremely durable fixed-blade knife. Given its characteristics, it finds use in a wide range of disciplines and uses ranging from survival activities, bushcraft or as an element of an EDC (Every Day Carry) kit.

It was designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S. (Italian Federation of Sport and Experimental Survival) instructor.

In Neck Knife mode, through the use of a 550 paracord lanyard, it can be held around the neck while keeping the knife upright with the handle facing down. Metal eyelets on the sheath made of pre-shaped Kydex allow for the attachment of both the lanyard and accessory holder.

The full-tang skeletonized design, allows the knife to be customized using Paracord as a handle covering

The Black S600 version uses Böhler S600 steel. This steel is used in industrial manufacturing to make metalworking tools and in mold making.

Satre S600 is hardened and cryogenically treated, thus achieving an exceptional hardness of as much as 64 HRC. This gives it great wear resistance and the ability to guarantee a long edge cutting edge.

Intended Use: Neck Knife / Hiking / Utility

Type of production: industrial
Country of production: Italy
Blade: Bohler S600 64HRC carbon steel
Blade treatment:Black EXP DARK
Handle:carbon steel Bohler S600 64HRC
Blade length: 70mm.
Blade thickness: 5mm.
Total length: 163mm.
Weight: 78g.
Scabbard:Kydex, for neck
Packaging: cardboard box with Extrema Ratio logos.
Notes: previously purchased and used knife, withdrawn from a private collection - possibility to use the sheath with Ulti-Clip, M.O.L.L.E. or Tek-Lok systems (can be purchased separately)

ER-SAT-S6-CP

€0.00

Only 0 left

Only 0 left

Out of stock
Wander Tactical - Raptor - Satin SanMai CoS & Paracord - PRIVATE COLLECTION - craft knife

Knife withdrawn from a private collection - Limited edition production in Japanese CoS steel in SanMai dating back to 2018 and no longer available - In like new condition, no marks on the blade (never cut, never resharpened) or on the handle. Supplied with handmade Kydex sheath and Wander Tactical certificate - Checked and certified by our in-house Coltelleria Collini laboratory.

In collaboration with Wander Tactical we have decided to propose their new neck knife, the Raptor model, in an exclusive version with a satin blade that uses the famous Japanese San Mai steel produced by Takefu Steel. Specifically we used, for the central plate, the CoS at 61.5HRC (Cobalt Special, mechanically considered 25% higher than the already highly appreciated VG10) and the 420J2 (at 56 HRC) for the two side plates in order to guarantee a very high cutting capacity, but at the same time a remarkable resistance to abrasion, resilience and resistance to oxidation.

Use: Neck Knife / Collection

Type of production: Artisan
Production Lama: Italy
Blade: integral, in Japanese laminated stainless steel (San Mai) with cutting edge in CoS at 61.5HRC with cryogenic hardening
Blade treatment: Satin
Handle: Paracord
Blade length: 80mm.
Blade thickness: 6.5mm.
Total length: 175mm.
Balancing: backward
Weight: 156g.
Sheath: in Kydex, thermoformed, with lanyard for Neck Knife use
Packaging: -
Notes: Each knife is unique and handcrafted

As in the ancient Japanese Samurai swords.

The rolled steel - imported into Italy by Collini Steel directly from the Japanese Takefu Steel - is based on the ancient Japanese tradition in the creation of the famous Samurai swords. In fact, as early as 1100 the expert Japanese blacksmiths combined different materials together to give the Katana swords incredible cutting capabilities combined with a resistance and flexibility previously unknown. It is thanks to this revolutionary construction technique that Samurai swords have been preserved to this day, becoming one of the most fascinating objects made by man. Following this tradition applied to modern metallurgy, today we are able to have technologically advanced steels already tested and used in cutlery also by famous brands such as Fallkniven, Cold Steel, Mcusta, Kai, Sog, Zwilling, Rockstead, etc.

Characteristics of San Mai steel: These are different types of metals bonded together to create a composite that encloses and intensifies the strengths of the metals individually taken:

- Longer life of the cutting edge
thanks to the use of very high quality steels with high carbon content (VG10, CoS, Shiro) or sintered (SPG2), in the heart of the sheet (Core Steel), the blade, once hardened, achieves decidedly hardness and cutting performance higher than those achieved with the use of traditional steels.

- Greater resilience
built with the principle of Japanese swords, multilayer steel is difficult to break thanks to the toughness of the central steel (Core Steel) and the elasticity of the steel used for the side coating (Stainless Steel).

- Better corrosion resistance
the steel used for the external layers (Stainless Steel) guarantees the blade a high resistance to corrosion. The combination of the two or more materials used by Takefu Steel generates, at the galvanic level, a structure that improves the corrosion resistance even on the wire.

- Easy processing even after heat treatment
although steel normally becomes harder after hardening, the lateral steel used in multilayer processing does not lose its softness and allows easy processing, drilling or welding even after heat treatment. For an optimal performance of the blade, cryogenic treatment is recommended.

- Improvement of the aesthetic result
The knives made with multi-state steel or with a damascus pattern at the end of the processing are aesthetically elegant, refined and highly appreciated by collectors all over the world.

For more information: collinisteel

AP-WT-COS-RA-W

€0.00

Only 0 left

Only 0 left

Out of stock
Wander Tactical - Raptor Knife - Raw Finish & Desert Paracord - custom knife

Use: Neck Knife / Collection

Type of production: handmade
Country of production: Italy
Blade: full tang, D2 steel
Blade Finish: Raw
Handle: Paracord
Blade length: 80mm.
Blade thickness: 5.5mm.
Total length: 180mm.
Weight: 130g.
Sheath: Thermoformed Kydex
Packaging: -
Notes: -

WT-RRA-DE

€0.00

Only 0 left

Only 0 left

Out of stock
Wander Tactical - Raptor Raw Finish knife - Green Paracord - craft knife

Use: Neck Knife / Collection

Type of production: Artisan
Production Lama: Italy
Blade: integral, D2 steel
Blade treatment: Raw Finish
Handle: Paracord
Blade length: 80mm.
Blade thickness: 6.5mm.
Total length: 180mm.
Balancing: set back
Weight: 130g.
Sheath: in Kydex, thermoformed
Packaging: -
Notes: Each knife is unique and handcrafted; there may be slight differences in finishes compared to the product photographed

WT-RRA-GR

€0.00

Only 0 left

Only 0 left

Out of stock
ExtremaRatio & Knives.it - Tengu Tactical - Icepick Karambit - knife

THE BRAND
Exclusive collaboration between Coltelleria Collini and Extrema Ratio marketed under the brand KNIVES.IT.

TECHNICAL DATA SHEET
Intended Use: Collection / Tactical / Neck knife
Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58/60HRC
Blade finish: Black PVD cat. MIL-C-13924
Handle: Stainless steel N690Co 58/60HRC
Blade length: 40mm.
Blade thickness: 5.5mm.
Total lenght: 166mm.
Weight: 86g.
Sheath: optional (available separately) in Kydex, handcrafted by the Italian Knife Maker Simone Tonolli.
Package: cardboard box with Extrema Ratio logos
Notes: knife created and manufactured by Extrema Ratio - each knife is numbered - Design by LoTactical

HISTORY
The Tengu takes its name from a mythical creature of Japanese folklore that is represented with both human and raven features, they had the reputation of being great warriors and legends say that some founders of martial arts were trained by them.

- It is designed to be used in many different grips, but is especially effective in the reverse grip.
- Designed to be carried in a variety of ways, whether as a neck knife, under shirt, clipped in a pocket or around the waist using optional systems such as Ulti-Clip or Tek-Lok or various M.O.L.L.E. type attachments.
- With its thickness of 5.5 mm. is extremely robust and thanks to the shape of the handle is comfortable even by those with large hands or those who want to use it with tactical gloves.
- The blade is compact, robust and very functional for both precision cutting and hard materials thanks to the serrated part on the back. The tanto-shaped tip is very robust and optimal for engraving work.

ER-TENGU

€0.00

Only 0 left

Only 0 left

Rating:
100%
5

Out of stock
ExtremaRatio - N.K.1 Neck Knife - SanMai V-TOKU2 - Limited Edition - NK1 - Knife

Japanese steel merges with Italian excellence

For this 2021 collaboration, exclusive to Coltelleria Collini, we have decided to propose a series of best sellers produced by Extrema Ratio. Knives made with the famous San Mai steel produced by the Japanese Takefu Steel. Specifically we have used the carbonaceous V-Toku2 at 62/63HRC for the central plate and the stainless SUS410 for the two external plates, in order to guarantee a very high cutting capacity, penetration and edge holding together with an easy resharpening and maintenance but at the same time the blade has a remarkable resistance to corrosion and an important increase of resilience given by the type of extreme steel and the laminated structure.

Intended Use: Neck Knife / Collector's Knife

Type of production: Industrial
Country of Production: Italy
Blade / Handle: Full, laminated Japanese steel (San Mai) with V-Toku2 (carbonaceous) cutting edge at 62/63HRC and SUS410 (stainless steel) outer cheeks
Blade finish: Satin finish
Blade length: 40mm.
Blade thickness: 3mm.
Total length: 129mm.
Weight: 55g.
Sheath: Kydex, for neck.
Packaging: Cardboard box with Extrema Ratio logos.
Notes: Numbered edition - cardboard box with Extremaratio logos and certificate - the central core of the blade and handle is made of carbon steel so it is recommended to wash/dry the knife very well after each use and protect the steel, during storage, with a light surface of lubricant to avoid rust and oxidation.

As in the ancient swords of the Japanese Samurai.

The rolled steel - imported in Italy by Collini Steel directly from the Japanese Takefu Steel - is based on the ancient Japanese tradition in the creation of the famous Samurai swords. As early as 1100, expert Japanese blacksmiths combined different materials to give Katana swords incredible cutting capabilities combined with previously unknown strength and flexibility. It is thanks to this revolutionary construction technique that the Samurai swords have been preserved until our days becoming one of the most fascinating objects made by man. Following this tradition applied to modern metallurgy, we are now able to have technologically advanced steels already tested and used in cutlery also by famous brands such as Fallkniven, Cold Steel, Mcusta, Kai, Sog, Zwilling, Rockstead, etc.

Characteristics of San Mai steel: It is made of different types of metals alloyed together to create a composite that contains and intensifies the strengths of the metals individually taken:

- Longer cutting edge life
thanks to the use of high quality steels with a high carbon content (VG10, CoS, Shiro) or sintered (SPG2), in the core steel, the blade, once hardened, reaches hardness and cutting performance decidedly superior to those achieved with the use of traditional steels.

- Greater resilience
Built on the principle of Japanese swords, the multilayer steel is difficult to break thanks to the toughness of the central steel (Core Steel) and the elasticity of the steel used for the lateral coating (Stainless Steel).

- Improved corrosion resistance
The steel used for the outer layers (Stainless Steel) gives the blade a high resistance to corrosion. The combination of the two or more materials used by Takefu Steel generates, at a galvanic level, a structure that improves corrosion resistance even on the edge.

- Easy machining even after heat treatment
Although steel normally becomes harder after hardening, the lateral steel used in multilayer machining does not lose its softness and allows easy machining, drilling or welding even after heat treatment. For optimum blade performance, cryogenic treatment is recommended.

- Improved aesthetic performance
Knives made of multi-state steel or damask pattern at the end of the processing are aesthetically elegant, refined and highly appreciated by collectors all over the world.

ER-NK1-CC

€0.00

Only -1 left

Only -1 left

Rating:
100%
5

Out of stock
Knives.it by Simone Tonolli - Kydex Deep Carry sheath for Tengu Tactical knife - knife accessories

Project born with the brand of Collini KNIVES.IT cutlery

Custom Kydex sheath, made by Simone Tonolli, designed as an additional replacement for the Tengu knife

Type of production: Custom
Country of production: Italy
Material: thermoformed Kydex
Type of sheath: in "taco" format, with 8 steel rivets, designed for concealed carry or deep carry
Length: 165mm.
Width: 43mm.
Thickness: 8mm.
Weight: 25g.
Packaging: -
Notes: clip or coupling system not present / not supplied, sold separately, compatible with systems such as Ulti-Clip or M.O.L.L.E.
Compatibility: compatible only with the TENGU model by Coltelleria Collini, Knives.it, created in collaboration with Extrema Ratio

KN-TENGU-K

€0.00

Only 0 left

Only 0 left

Rating:
100%
5

Out of stock
Wander Tactical - Raptor Raw Finish knife - OD green Paracord - craft knife

Use: Neck Knife / Collection

Type of production: Artisan
Lama production: Italy
Blade: integral, in D2 steel
Blade treatment: Raw Finish
Handle: Paracord
Blade length: 80mm.
Blade thickness: 6.5mm.
Total length: 180mm.
Balancing: set back
Weight: 130g.
Sheath: in Kydex, thermoformed, with cord for use with Neck Knife
Packaging: -
Notes: Each knife is unique and handcrafted; there may be slight differences in finishes, colors and materials compared to the photographed product

WT-RA-BL

€0.00

Only 0 left

Only 0 left

Rating:
87%
4.4

Out of stock
Wander Tactical - Raptor Raw Finish knife - OD green Paracord - craft knife

Use: Neck Knife / Collection

Type of production: Artisan
Lama production: Italy
Blade: integral, in D2 steel
Blade treatment: Raw Finish
Handle: Paracord
Blade length: 80mm.
Blade thickness: 6.5mm.
Total length: 180mm.
Balancing: set back
Weight: 130g.
Sheath: in Kydex, thermoformed, with cord for use with Neck Knife
Packaging: -
Notes: Each knife is unique and handcrafted; there may be slight differences in finishes, colors and materials compared to the photographed product

WT-RA-G

€0.00

Only 0 left

Only 0 left

Out of stock
Wander Tactical - Raptor - Satin CoS SanMai & Green Paracord - custom knife

In collaboration with Wander Tactical we decided to propose their new neck knife, the Raptor, in an exclusive satin-blade version that uses the famous SanMai japanese steel produced by Takefu Steel. For the central plate we have chose the CoS with 61,5HRC (Cobalt Special, considered mechanically superior by 25% compared to the already much appreciated VG10) and 420J2 with 56 HRC for the two side plates in order to ensure high cutting capacity but at the same time a remarkable resistance to abrasion, resilience and resistance to oxidation.

Use: Neck Knife / Collection

Type of production: handmade
Production Country: Italy
Blade: Full tang with japanese laminated (SanMai) 61.5HRC CoS stainless steel with cryogenic temper
Blade treatment: Satin
Handle: Paracord
Blade length: 80mm.
Blade thickness: 6.5mm.
Overall length: 175mm.
Balancing: backward
Weight: 156g.
Sheath: Kydex, thermoformed, for use with lanyard Neck Knife
Packaging: -
Notes: Each knife is unique and handmade; may be slight of finishes, colors and material differences with respect to the photographed product.

WT-RP-SM

€0.00

Only 0 left

Only 0 left

Out of stock
Wander Tactical - Raptor Compound Raw Finish - woodland Paracord - custom knife

Use: Neck Knife / Collection

Type of production: handmade
Production Country: Italy
Blade: Full tang, D2 Steel
Blade treatment: Raw Finish
Handle: Paracord
Blade length: 80mm.
Blade thickness: 6.5mm.
Overall length: 175mm.
Balancing: backward
Weight: 156g.
Sheath: Kydex, thermoformed, for use with lanyard Neck Knife
Packaging: -
Notes: Each knife is unique and handmade; may be slight of finishes, colors and material differences with respect to the photographed product.

WT-RA-RO

€0.00

Only 0 left

Only 0 left

Out of stock
Wander Tactical - Raptor - Satin CoS SanMai & Green Paracord - custom knife

In collaboration with Wander Tactical we decided to propose their new neck knife, the Raptor, in an exclusive satin-blade version that uses the famous SanMai japanese steel produced by Takefu Steel. For the central plate we have chose the CoS with 61,5HRC (Cobalt Special, considered mechanically superior by 25% compared to the already much appreciated VG10) and 420J2 with 56 HRC for the two side plates in order to ensure high cutting capacity but at the same time a remarkable resistance to abrasion, resilience and resistance to oxidation.

Use: Neck Knife / Collection

Type of production: handmade
Production Country: Italy
Blade: Full tang with japanese laminated (SanMai) 61.5HRC CoS stainless steel with cryogenic temper
Blade treatment: Satin
Handle: Paracord
Blade length: 80mm.
Blade thickness: 6.5mm.
Overall length: 175mm.
Balancing: backward
Weight: 156g.
Sheath: Kydex, thermoformed, for use with lanyard Neck Knife
Packaging: -
Notes: Each knife is unique and handmade; may be slight of finishes, colors and material differences with respect to the photographed product.

WT-COS-RA-O

€196.72

Out of stock
Wander Tactical - Raptor Neck Knife - All Black - Paracord - Custom Knife

Use: Neck Knife / Collection

Type of production: handmade
Production Country: Italy
Blade: Full tang, D2 Steel
Blade treatment: Black GunKote
Handle: Paracord
Blade length: 80mm.
Blade thickness: 6.5mm.
Overall length: 175mm.
Balancing: backward
Weight: 156g.
Sheath: Kydex, thermoformed, for use with lanyard Neck Knife
Packaging: -
Notes: Each knife is unique and handmade; may be slight of finishes, colors and material differences with respect to the photographed product.

WT-RA-B

€0.00

Only 0 left

Only 0 left

Out of stock
Wander Tactical - Tryceratops Neck - Raw Finish and Cherry Brown Micarta - custom knife

"Neck Knife" version with slimmer sheath and tapered grips, to make the knife more comfortable and suited to the neck

Intended Use: Tactical / Collection

Type of production: Custom
Country of Production: Italy
Blade: D2 Tool Steel 59/60HRC
Blade Treatment: RAW
Handle: Micarta Fire
Blade length: 65 mm.
Blade thickness: 5.5 mm.
Overall length: 132 mm.
Balancing: backward
Weight: 176 g.
Sheath: Custom maded OD Black Kydex
Packaging: -
Note: each knife is unique because it is hand maded, could therefore be small differences / inaccuracies respect to the model on pictures.

WT-TRT-NE

€0.00

Only 0 left

Only 0 left

Out of stock
Wander Tactical - Raptor - Black Blood & Black Paracord - custom knife

Occupation: Neck Knife / Collection

Type of production: Artisan
Lama production: Italy
Blade: integral, in D2 steel
Lama treatment: Black Blood
Handle: Paracord
Blade length: 80mm.
Blade thickness: 6.5mm.
Total length: 175mm.
Balancing: set back
Weight: 156g.
Sheath: Kydex, thermoformed, with cord for Neck Knife use
Package: -
Notes: Each knife is unique and handcrafted; there may be slight differences in finishes, colors and materials compared to the photographed product

WT-RA-BBBK

€0.00

Only 0 left

Only 0 left

Out of stock
Wander Tactical - Raptor Bronze GunKote & Coyote Paracord - craft knife

Use: Neck Knife / Collection

Type of production: Artisan
Blade production: Italy
Blade: integral, D2 steel
Blade Treatment: Bronze GunKote
Manicure: Paracord
Blade Length: 80mm.
Blade thickness: 6.5mm.
Total Length: 175mm.
Balancing: backward
Weight: 156g.
Sheath: Kydex, thermoformed, with cord for use with Neck Knife
Packing: -
Notes: Each knife is unique and handcrafted; There may be differences in finishes, colors and materials compared to the photographed product

WT-R-DP

€0.00

Only 0 left

Only 0 left

Out of stock
Wander Tactical - Raptor - Satin CoS SanMai & Green Paracord - custom knife

In collaboration with Wander Tactical we decided to propose their new neck knife, the Raptor, in an exclusive satin-blade version that uses the famous SanMai japanese steel produced by Takefu Steel. For the central plate we have chose the CoS with 61,5HRC (Cobalt Special, considered mechanically superior by 25% compared to the already much appreciated VG10) and 420J2 with 56 HRC for the two side plates in order to ensure high cutting capacity but at the same time a remarkable resistance to abrasion, resilience and resistance to oxidation.

Use: Neck Knife / Collection

Type of production: handmade
Production Country: Italy
Blade: Full tang with japanese laminated (SanMai) 61.5HRC CoS stainless steel with cryogenic temper
Blade treatment: Satin
Handle: Paracord
Blade length: 80mm.
Blade thickness: 6.5mm.
Overall length: 175mm.
Balancing: backward
Weight: 156g.
Sheath: Kydex, thermoformed, for use with lanyard Neck Knife
Packaging: -
Notes: Each knife is unique and handmade; may be slight of finishes, colors and material differences with respect to the photographed product.

WT-COS-RA-W

€196.72

Only 0 left

Only 0 left

Out of stock
ExtremaRatio - N.K.3 Karambit Stone Washed - Neck Knife - NK3K - knife

NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

intended use: Neck Knife
type of production: Industrial
production country: Italy
Blade: stainless steel N690Co 58 / 60HRC
Blade treatment: Stone Washed
manicatura: stainless steel N690Co 58 / 60HRC
blade length: 70mm.
blade thickness: 6.3mm.
total length: 172mm.
Weight: 95g.
Sheath: Kydex, neck
Package: Cardboard box with logos Extrema Ratio
Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

ER-NK3K-SW

€163.93

Only 0 left

Only 0 left

Rating:
93%
4.7

Out of stock
Wander Tactical - Iron Washed - Coyote Paracord - artisan knife

Use: Neck Knife / Collection

Type of production: handmade
Production Country: Italy
Blade: Full tang, D2 Steel
Blade treatment: Raw Finish
Handle: Paracord
Blade length: 80mm.
Blade thickness: 6.5mm.
Overall length: 175mm.
Balancing: backward
Weight: 156g.
Sheath: Kydex, thermoformed, for use with lanyard Neck Knife
Packaging: -
Notes: Each knife is unique and handmade; may be slight of finishes, colors and material differences with respect to the photographed product.

12653

€163.11

Rating:
83%
4.2

Out of stock
Wander Tactical - Tryceratops Iron Washed and Black Micarta - custom knife

Type of production: Artisan
Lama production: Italy
Blade: in D2 steel at 59 / 60HRC
Blade treatment: Iron Wash
Handle: Micarta
Blade length: 70mm.
Blade thickness: 6.5mm.
Total length: 125mm.
Balancing: set back
Weight: 196g.
Sheath: in Kydex, thermoformed, with Tek-Lok type connection
Packaging: -
Notes: Each knife is unique and handcrafted; there may be slight differences in finishes, colors and materials compared to the photographed product.

WT005

€0.00

Only 0 left

Only 0 left

Out of stock

The brands dealt with by Coltelleria Collini

Neck Knives: your reliable daily companion

Our Shops in Italy