Sport, Military and Collectible Knives | Coltelleria Collini

KNIFE ACQUIRED FROM A PRIVATE COLLECTION
* Origin: Acquired from a private individual, previously purchased
* Condition: Mechanically in excellent condition; cosmetically in good condition. Shows minor scuffs on the G10 handle due to the passage of time and limited use of the knife.
* Availability on the market: Knife from 2000, discontinued, particularly rare
* Sharpening: Professionally resharpened by the previous owner
* Marks on blade: Minor cosmetic abrasions caused by age and use of the knife, albeit limited
* Marks on handle: A few minor marks caused by age and use of the knife, albeit limited
* Box: -
* Sheath: -
* Manuals, Certificates, and Warranties: -
* Inspected and certified by our in-house laboratory

Intended use: Tactical/Military

Manufacturing type: Industrial
Blade: 154CM stainless steel
Blade finish: Titanium nitriding
Country of manufacture: USA
Handle: G-10 with titanium inlays
Blade length: 90 mm.
Blade thickness: 3 mm.
Closed length: 125 mm.
Overall length: 213 mm.
Weight: 128 g.
Closure: Liner Lock
Clip: burnished stainless steel, removable
Notes: Knife from 2000, discontinued, previously purchased, from a private collection

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: -

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: -

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: -

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

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: -

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: -

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

The Skeletool CX packs essential tools into a sleek, smart design. We chose the CX over other Skeletool versions because of its smooth blade made from premium 154CM stainless steel. Of course, it’s much more than just a knife. The pliers, bit holder, and wire cutters will come in handy more often than you expect. In other words, the Skeletool CX has everything you need. Now also available in eye-catching new color variants, all with a Cerakote finish.

TOOLS AND FUNCTIONS:
* Needle-nose pliers
* Wire cutter
* Wire stripper
* Black DLC 154CM stainless steel smooth-edge blade with liner lock
* Locking bit holder for interchangeable bits
* Two Phillips screwdrivers: 3/32“ and 1/8”
* Two flathead screwdrivers, medium and small
* Bottle opener
* Carabiner
* Removable clip

SPECIFICATIONS: 
Closed length: 10 cm
Open length: 15.24 cm
Blade length: 6.60 cm
Weight: 142 g
Thickness: 1.32 cm

FEATURES:
Bit Holder - Conveniently store Leatherman tool bits in the handle of your multi-tool for easy access while working or for safe storage when not in use.

Lockable blade - Knife blade locks into place when fully open. The user must manually unlock the blade to fold it back, allowing for much safer use.

Replaceable Pocket Clip - A removable clip that allows the user to carry their multi-tool attached to a pocket or belt loop without using a sheath. By removing the clip, the user can easily carry their tool in a sheath if desired.

Externally Accessible Features - This multi-tool features tools that are accessible while the tool is folded or closed, mimicking the functionality of a pocket knife.

One-Handed Operation - Every tool on this multi-tool can be opened and operated with one hand. This allows the user to keep the other hand free for situations requiring multitasking or an extra hand.

The Skeletool CX packs essential tools into a sleek, smart design. We chose the CX over other Skeletool models because of its smooth blade made from premium 154CM stainless steel. Of course, it’s much more than just a knife. The pliers, bit holder, and wire cutters will come in handy more often than you expect. In other words, the Skeletool CX has everything you need. Now also available in eye-catching new color variants, all with a Cerakote finish.

TOOLS AND FUNCTIONS:
* Needle-nose pliers
* Wire cutter
* Wire stripper
* Desert Cerakote 154CM stainless steel blade with a smooth edge and liner lock
* Lockable bit holder for interchangeable bits
* Two Phillips screwdrivers: 3/32“ and 1/8”
* Two flathead screwdrivers: medium and small
* Bottle opener
* Carabiner
* Removable clip

SPECIFICATIONS: 
Closed length: 10 cm
Open length: 15.24 cm
Blade length: 6.60 cm
Weight: 142 g
Thickness: 1.32 cm

FEATURES:
Bit Holder - Conveniently store Leatherman tool bits in the handle of your multi-tool for easy access while working or for safe storage when not in use.

Lockable Blade - Knife blade locks into place when fully extended. The user must manually unlock the blade to retract it, allowing for much safer use.

Replaceable Pocket Clip - A removable clip that allows the user to carry their multi-tool attached to a pocket or belt loop without using a sheath. By removing the clip, the user can easily carry their tool in a sheath if desired.

Externally Accessible Features - This multi-tool features tools that are accessible while the tool is folded or closed, mimicking the functionality of a pocket knife.

One-Handed Operation - Every tool on this multi-tool can be opened and operated with one hand. This allows the user to keep the other hand free for situations requiring multitasking or an extra hand.

The Skeletool CX packs essential tools into a sleek, smart design. We chose the CX over other Skeletool versions because of its smooth blade made from premium 154CM stainless steel. Of course, it’s much more than just a knife. The pliers, bit holder, and wire cutters will come in handy more often than you expect. In other words, the Skeletool CX has everything you need. Now also available in eye-catching new color variants, all with a Cerakote finish.

TOOLS AND FUNCTIONS:
* Needle-nose pliers
* Wire cutter
* Wire stripper
* Black DLC 154CM stainless steel smooth-edge blade with liner lock
* Locking bit holder for interchangeable bits
* Two Phillips screwdrivers: 3/32“ and 1/8”
* Two flathead screwdrivers, medium and small
* Bottle opener
* Carabiner
* Removable clip

SPECIFICATIONS: 
Closed length: 10 cm
Open length: 15.24 cm
Blade length: 6.60 cm
Weight: 142 g
Thickness: 1.32 cm

FEATURES:
Bit Holder - Conveniently store Leatherman tool bits in the handle of your multi-tool for easy access while working or for safe storage when not in use.

Lockable blade - Knife blade locks into place when fully open. The user must manually unlock the blade to fold it back, allowing for much safer use.

Replaceable Pocket Clip - A removable clip that allows the user to carry their multi-tool attached to a pocket or belt loop without using a sheath. By removing the clip, the user can easily carry their tool in a sheath if desired.

Externally Accessible Features - This multi-tool features tools that are accessible while the tool is folded or closed, mimicking the functionality of a pocket knife.

One-Handed Operation - Every tool on this multi-tool can be opened and operated with one hand. This allows the user to keep the other hand free for situations requiring multitasking or an extra hand.

When you need more working space and a blade with more substance, SATRE FX is the answer. It takes the essential design of the Satre and scales it up, improving control and cutting capacity without compromising its ergonomics. It is designed for continuous use, where the hand must not tire and the tool must remain predictable.

SATRE FX is a full-tang fixed blade with a skeletonized frame, designed to maintain good balance even during extended sessions. The more generous geometry offers a larger cutting surface and more stable handling during demanding tasks. The open construction also allows you to customize the handle with Paracord, adapting it to your preferences. The knife comes with a black Kydex sheath, pre-shaped and ready to use.

Configurations and Steels
* N690Co (Black and Stone Washed): a balanced choice between edge retention, impact resistance, and ease of use in the field.
* Nitrogen (Orange and Yellow): greater corrosion resistance, easy resharpening, and high visibility.
* Böhler S600 (Black): high-performance steel, cryogenically treated to 64 HRC, designed for maximum 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: 95 mm
Blade thickness: 5 mm
Overall length: 190 mm
Weight: 97 g
Sheath: Thermoformed Kydex
Packaging: Cardboard box with Extrema Ratio logos
Notes: Larger version compared to the Satre model

When you need more working space and a blade with more substance, SATRE FX is the answer. It takes the essential design of the Satre and scales it up, improving control and cutting capacity without compromising its ergonomics. It is designed for continuous use, where the hand must not tire and the tool must remain predictable.

SATRE FX is a full-tang fixed blade with a skeletonized frame, designed to maintain good balance even during extended sessions. The more generous geometry offers a larger cutting surface and more stable handling during demanding tasks. The open construction also allows you to customize the handle with Paracord, adapting it to your preferences. The knife comes with a black Kydex sheath, pre-shaped and ready to use.

Configurations and Steels
* N690Co (Black and Stone Washed): a balanced choice between edge retention, impact resistance, and ease of use in the field.
* Nitrogen (Orange and Yellow): greater corrosion resistance, easy resharpening, and high visibility.
* Böhler S600 (Black): high-performance steel, cryogenically treated to 64 HRC, designed for maximum 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: 95 mm
Blade thickness: 5 mm
Overall length: 190 mm
Weight: 97 g
Sheath: Thermoformed Kydex
Packaging: Cardboard box with Extrema Ratio logos
Notes: Larger version compared to the Satre model

SATRE F è un chiudibile compatto pensato per uso quotidiano. Mantiene l’impostazione robusta della linea SATRE in un formato tascabile, con ingombri ridotti e portabilità reale. Sta in tasca senza dare fastidio, ma quando serve è pronto.

Apertura flipper rapida e controllabile con una mano. Struttura con doppia cartella in acciaio e blocco Liner-Lock: rigido, affidabile, senza giochi. La clip deep carry lo rende discreto in tasca. La fresatura sulla guancetta non è solo estetica: permette di identificare subito la variante anche da chiuso.

Le versioni in Böhler N690Co (Black, Stone Washed) puntano su resistenza all’usura e buona tenuta del filo, con manutenzione semplice. Le varianti in acciaio Nitrogen (Periwinkle, Orange, Yellow) privilegiano la resistenza alla corrosione, ideali per ambienti umidi o uso intensivo all’aperto. La versione Outdoor Nitrogen è la più orientata all’impiego sul campo.

Intended use: Sport / EDC

Production type: Industrial
Country of origin: Italy
Blade: Nitrogen steel
Blade finish: Stonewashed
Handle: Stainless steel liners with anodized Anticorodal handle scales
Blade length: 72 mm
Blade thickness: 3 mm
Overall length: 174 mm
Weight: 98 g
Locking mechanism: Liner Lock
Pocket clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: Flipper opening system

SATRE F è un chiudibile compatto pensato per uso quotidiano. Mantiene l’impostazione robusta della linea SATRE in un formato tascabile, con ingombri ridotti e portabilità reale. Sta in tasca senza dare fastidio, ma quando serve è pronto.

Apertura flipper rapida e controllabile con una mano. Struttura con doppia cartella in acciaio e blocco Liner-Lock: rigido, affidabile, senza giochi. La clip deep carry lo rende discreto in tasca. La fresatura sulla guancetta non è solo estetica: permette di identificare subito la variante anche da chiuso.

Le versioni in Böhler N690Co (Black, Stone Washed) puntano su resistenza all’usura e buona tenuta del filo, con manutenzione semplice. Le varianti in acciaio Nitrogen (Periwinkle, Orange, Yellow) privilegiano la resistenza alla corrosione, ideali per ambienti umidi o uso intensivo all’aperto. La versione Outdoor Nitrogen è la più orientata all’impiego sul campo.

Intended use: Sport / EDC

Production type: Industrial
Country of origin: Italy
Blade: Nitrogen steel
Blade finish: MIL-C-13924 burnishing
Handle: Stainless steel liners with anodized Anticorodal handle scales
Blade length: 72 mm
Blade thickness: 3 mm
Overall length: 174 mm
Weight: 98 g
Locking mechanism: Liner Lock
Pocket clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: Flipper opening system

SATRE F è un chiudibile compatto pensato per uso quotidiano. Mantiene l’impostazione robusta della linea SATRE in un formato tascabile, con ingombri ridotti e portabilità reale. Sta in tasca senza dare fastidio, ma quando serve è pronto.

Apertura flipper rapida e controllabile con una mano. Struttura con doppia cartella in acciaio e blocco Liner-Lock: rigido, affidabile, senza giochi. La clip deep carry lo rende discreto in tasca. La fresatura sulla guancetta non è solo estetica: permette di identificare subito la variante anche da chiuso.

Le versioni in Böhler N690Co (Black, Stone Washed) puntano su resistenza all’usura e buona tenuta del filo, con manutenzione semplice. Le varianti in acciaio Nitrogen (Periwinkle, Orange, Yellow) privilegiano la resistenza alla corrosione, ideali per ambienti umidi o uso intensivo all’aperto. La versione Outdoor Nitrogen è la più orientata all’impiego sul campo.

Intended use: Sport / EDC

Production type: Industrial
Country of origin: Italy
Blade: Nitrogen steel
Blade finish: MIL-C-13924 burnishing
Handle: Stainless steel liners with anodized Anticorodal handle scales
Blade length: 72 mm
Blade thickness: 3 mm
Overall length: 174 mm
Weight: 98 g
Locking mechanism: Liner Lock
Pocket clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: Flipper opening system

SATRE F è un chiudibile compatto pensato per uso quotidiano. Mantiene l’impostazione robusta della linea SATRE in un formato tascabile, con ingombri ridotti e portabilità reale. Sta in tasca senza dare fastidio, ma quando serve è pronto.

Apertura flipper rapida e controllabile con una mano. Struttura con doppia cartella in acciaio e blocco Liner-Lock: rigido, affidabile, senza giochi. La clip deep carry lo rende discreto in tasca. La fresatura sulla guancetta non è solo estetica: permette di identificare subito la variante anche da chiuso.

Le versioni in Böhler N690Co (Black, Stone Washed) puntano su resistenza all’usura e buona tenuta del filo, con manutenzione semplice. Le varianti in acciaio Nitrogen (Periwinkle, Orange, Yellow) privilegiano la resistenza alla corrosione, ideali per ambienti umidi o uso intensivo all’aperto. La versione Outdoor Nitrogen è la più orientata all’impiego sul campo.

Intended use: Sport / EDC

Production type: Industrial
Country of origin: Italy
Blade: Nitrogen steel
Blade finish: MIL-C-13924 burnishing
Handle: Stainless steel liners with anodized Anticorodal handle scales
Blade length: 72 mm
Blade thickness: 3 mm
Overall length: 174 mm
Weight: 98 g
Locking mechanism: Liner Lock
Pocket clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: Flipper opening system

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

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

RAO STEEL is the outdoor knife to take everywhere: trekking, survival, camping, or simply in your backpack. 5 mm fixed blade, customizable grip, technical sheath.

Designed for those who don't seek fortune but rely on their equipment. Always reliable, everywhere. No compromises.

Derived from the legendary folding RAO, RAO STEEL distills its tactical essence into an even more compact and practical fixed blade version. A knife designed for action, designed to tackle nature and every need in the field. RAO STEEL cuts, carves, and splits.

From wood for lighting a fire to building a shelter, to the most precise tasks when camping or on daily excursions.

RAO STEEL NITROGEN SATIN
For those who love clean and essential functionality: high corrosion-resistant Nitrogen steel, easy to resharpen even with makeshift tools. Satin finish: perfect for outdoor contexts, even in food preparation. Ideal in humid, variable environments and on long journeys.

Intended use: Outdoor / Utility

Type of production: industrial
Country of production: Italy
Blade: full tang, Nitrogen steel
Blade finish: Satin
Handle: monolithic, perforated, Nitrogen steel
Blade length: 87mm.
Blade thickness: 5 mm.
Total length: 190 mm.
Weight: 128 g.
Sheath: Kydex, ambidextrous, with double button loop attachment
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

Uncompromising versatility and robustness - The ideal companion for those who approach hunting as a discipline and technique.
The VENATUS F Nitrogen Black Satin with black G10 handle is designed to tackle every stage of the hunt. The 12 cm satin-finished blade, with spear point profile and counter-grinding, is made of Nitrogen steel, ideal for humid environments and prolonged use. The technical and resistant G10 handle guarantees control and durability even in the most difficult conditions.

Intended use: Hunting / Light Utility

Type of production: Industrial
Country of production: Italy
Blade: full tang, made of Nitrogen steel
Blade finish: Satin
Handle: G10
Blade length: 119 mm.
Blade thickness: 3.8 mm.
Total length: 248 mm.
Weight: 235 g.
Sheath: leather, ambidextrous, modular, made in Italy
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

Compact, balanced, decisive. - Perfect for the modern hunter who accepts no compromises.
The VENATUS S Nitrogen Black Satin with black G10 handle is the ideal tool for finishing and precision work while hunting. The 9 cm blade in satin-finished Nitrogen steel guarantees a clean cut, resistance to oxidation, and easy resharpening, even in harsh environmental conditions. The black G10 handle ensures a firm and reliable grip, designed for technical and intensive use.

Intended use: Hunting / Light Utility

Type of production: Industrial
Country of production: Italy
Blade: full tang, Nitrogen steel
Blade finish: Satin
Handle: G10
Blade length: 90mm.
Blade thickness: 3.8mm.
Total length: 220mm.
Weight: 235g.
Sheath: leather, ambidextrous, modular, made in Italy
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

Natural Precision - A knife that becomes an extension of the hand and spirit.

The VENATUS S Nitrogen Satin with walnut wood handle combines performance and tradition. Its 9 cm satin-finished Nitrogen steel blade is ideal for detailed work: clean cuts, controlled movements, maximum sensitivity. The walnut handle adds a warm and authentic touch, for those seeking a deep connection with the essence of hunting.

Intended use: Hunting / Light Utility

Type of production: Industrial
Country of production: Italy
Blade: full tang, Nitrogen steel
Blade finish: Satin
Handle: Walnut wood
Blade length: 90mm.
Blade thickness: 3.8mm.
Total length: 220mm.
Weight: 180g.
Sheath: leather, ambidextrous, modular, made in Italy
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

VIPERA is born from the fusion between the tactical and survival worlds, combining speed of use, robustness, and precision in a knife weighing less than 100 grams. Equipped with an elongated drop-point blade with a full flat grind and narrow edge, it offers penetration, smooth cutting, and hardness up to 61 HRC. It is available in two high-performance steels, both with excellent edge retention and corrosion resistance. The ergonomic handle with integrated guard ensures maximum control in all conditions, while the ASPIS nylon sheath allows for stable and versatile carrying.

VIPERA Nitrogen (Stone Washed, HCS, Ranger Green)
This variant is designed for outdoor, survival, bushcraft, and prepping users: areas where reliability in the field, weather resistance, and maintainability are essential. Nitrogen steel maintains excellent edge retention, combined with excellent rust resistance and, above all, greater ease of resharpening compared to M390. The increased resilience makes these models more tolerant to the abuse typical of a field environment.

Technical insight into nitrogen-added steels
Nitrogen steels, or nitrogen-added steels, are alloys in which nitrogen is used as an alloying element instead of, or in addition to, carbon. Although nitrogen is less effective than carbon in hardening the martensitic matrix, it has the advantage of forming stable compounds with chromium to a much lesser extent. This allows a greater amount of chromium to be kept in solid solution, improving corrosion resistance. In addition, nitrogen contributes to the hardness and stability of the structure, giving these steels a good balance between hardness, toughness, and corrosion resistance. Compared to traditional martensitic steels, nitrogen steels can therefore offer a better combination of mechanical properties and resistance to chemicals, while maintaining good workability and sharpenability characteristics.

Intended use: Outdoor / Utility / Bushcraft

Type of production: Industrial
Country of production: Italy
Blade: nitrogen-alloyed stainless steel
Blade treatment: Stonewashed
Handle: Forprene
Blade length: 116mm.
Blade thickness: 4 mm.
Total length: 236 mm.
Weight: 95 g.
Sheath: ASPIS nylon with two multi-position clips, M.O.L.L.E. compatible.
Packaging: Cardboard box with Extrema Ratio logos.
Notes: -

VIPERA is born from the fusion between the tactical and survival worlds, combining speed of use, robustness, and precision in a knife weighing less than 100 grams. Equipped with an elongated drop-point blade with a full flat grind and narrow edge, it offers penetration, smooth cutting, and hardness up to 61 HRC. It is available in two high-performance steels, both with excellent edge retention and corrosion resistance. The ergonomic handle with integrated guard ensures maximum control in all conditions, while the ASPIS nylon sheath allows for stable and versatile carrying.

VIPERA Nitrogen (Stone Washed, HCS, Ranger Green)
This variant is designed for outdoor, survival, bushcraft, and prepping users: areas where reliability in the field, weather resistance, and maintainability are essential. Nitrogen steel maintains excellent edge retention, combined with excellent rust resistance and, above all, greater ease of resharpening compared to M390. The increased resilience makes these models more tolerant to the abuse typical of a field environment.

Technical insight into nitrogen-added steels
Nitrogen steels, or nitrogen-added steels, are alloys in which nitrogen is used as an alloying element instead of, or in addition to, carbon. Although nitrogen is less effective than carbon in hardening the martensitic matrix, it has the advantage of forming stable compounds with chromium to a much lesser extent. This allows a greater amount of chromium to be kept in solid solution, improving corrosion resistance. In addition, nitrogen contributes to the hardness and stability of the structure, giving these steels a good balance between hardness, toughness, and corrosion resistance. Compared to traditional martensitic steels, nitrogen steels can therefore offer a better combination of mechanical properties and resistance to chemicals, while maintaining good workability and sharpenability characteristics.

Intended use: Outdoor / Utility / Bushcraft

Type of production: Industrial
Country of production: Italy
Blade: nitrogen-alloyed stainless steel
Blade treatment: Stonewashed
Handle: Forprene
Blade length: 116mm.
Blade thickness: 4 mm.
Total length: 236 mm.
Weight: 95 g.
Sheath: ASPIS nylon with two multi-position clips, M.O.L.L.E. compatible.
Packaging: Cardboard box with Extrema Ratio logos.
Notes: -

Do it, track it, flip it! Bring adventure with you at all times with the Böker Plus Micro Tracker Folder, the perfect pocket knife for outdoor and bushcrafting enthusiasts.

Compact, versatile, and innovatively designed, this model combines the strength of a 154CM blade with the convenience of a folding mechanism, offering maximum functionality in any situation.

With an ergonomic brown Micarta handle, a smooth opening system with Flipper and a reliable Linerlock closure, the Micro Tracker Folder is ready to take on any challenge.

Complete with Deep-Carry clip, lanyard hole and high-quality nylon pouch.

Intended Use: Sporting / Hiking

Production Type: Industrial
Country of Production: China
Blade: 154CM stainless steel
Blade treatment: Black TPFE
Handle: Micarta
Blade length: 81mm.
Blade thickness: 3.3mm.
Weight: 107gr.
Total length: 189mm.
Clip: stainless steel, removable
Closure: liner lock
Packaging: cardboard box with Boker Plus logos, zippered nylon pouch
Notes: design by Dave Wenger, Carson Flipper-type opening system on ball bearings

Skeletool CX packs essential tools into a smart and elegant design. We chose the CX over other Skeletool versions because of the smooth premium stainless steel 154CM blade. Of course, it is much more than just a knife. The pliers, bit holder, and cutters will come in handy more often than you expect. In other words, Skeletool CX has everything you need. Now available in four new colors: Onyx, Nightshade, Verdant, and Paradise.

Tools and Features:
* Fine Nose Pliers.
* Cable cutter
* Wire cutter
* 154CM smooth-edged stainless steel blade, with liner lock.
* Bit holder with lock, for interchangeable inserts.
* Two Philips star screwdrivers, 3/32” and 1/8”
* Two flat screwdrivers, medium and small
* Bottle opener
* Carabiner clip
* Removable clip

Specifications: 
Length when closed: 10cm
Length when open: 15.24cm
Blade length: 6.60cm
Weight: 142g
Thickness: 1.32 cm

Skeletool CX packs essential tools into a smart and elegant design. We chose the CX over other Skeletool versions because of the smooth premium stainless steel 154CM blade. Of course, it is much more than just a knife. The pliers, bit holder, and cutters will come in handy more often than you expect. In other words, Skeletool CX has everything you need. Now available in four new colors: Onyx, Nightshade, Verdant, and Paradise.

Tools and Features:
* Fine Nose Pliers.
* Cable cutter
* Wire cutter
* 154CM smooth-edged stainless steel blade, with liner lock.
* Bit holder with lock, for interchangeable inserts.
* Two Philips star screwdrivers, 3/32” and 1/8”
* Two flat screwdrivers, medium and small
* Bottle opener
* Carabiner clip
* Removable clip

Specifications: 
Length when closed: 10cm
Length when open: 15.24cm
Blade length: 6.60cm
Weight: 142g
Thickness: 1.32 cm

Skeletool CX packs essential tools into a smart and elegant design. We chose the CX over other Skeletool versions because of the smooth premium stainless steel 154CM blade. Of course, it is much more than just a knife. The pliers, bit holder, and cutters will come in handy more often than you expect. In other words, Skeletool CX has everything you need. Now available in four new colors: Onyx, Nightshade, Verdant, and Paradise.

Tools and Features:
* Fine Nose Pliers.
* Cable cutter
* Wire cutter
* Black DLC 154CM smooth-edged stainless steel blade, with liner lock.
* Bit holder with lock, for interchangeable inserts.
* Two Philips star screwdrivers, 3/32” and 1/8”
* Two flat screwdrivers, medium and small
* Bottle opener
* Carabiner clip
* Removable clip

Specifications: 
Length when closed: 10cm
Length when open: 15.24cm
Blade length: 6.60cm
Weight: 142g
Thickness: 1.32 cm

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Full set, NOS (new old stock / stock fund).
* Condition: Brand new, never taken out of wooden box.
* Commercially available: Out of production
* Sharpening: Factory
* Marks on blade: None
* Marks on handle: None
* Box: Present
* Scabbard: Present
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory

Iconic knife produced by Puma and dating back to the late 1980s, featuring a then very modern line and a steel that was very advanced for the time (154CM). 

Intended Use: Collection / Vintage / Tactical

Type of production: Semi-industrial
Country of Production: Germany
Blade: Stainless steel 154CM
Blade finish: Satin finish
Handle: integral, stainless steel and Brazilian Jacaranda wood
Blade length: 165mm.
Blade thickness: 5.5mm.
Total length: 290mm.
Balance: backward
Weight: 320g.
Sheath: leather
Packaging: wooden case
Notes: 1980s Vintage knife - NOS (new old stock) - Brand new

In the Kwaiken Sym, Oregon knife designer Lucas Burnley brings the idea of symmetry and harmony in line with Japanese philosophy. The flipper resembles a parry element and allows for safe and intuitive use. The linerlock, which locks the sharp spearpoint blade on one side, is made of 154CM coated in black.

The exclusive claim is underscored by the noble titanium bolster handle and G10 handle grips, which harmoniously give the all-black knife a very distinctive look. The slim design and exclusive material make the Kwaiken a noble cross between a sports knife and a tactical knife. It comes with a high-quality nylon case for storage.


Intended Use: Tactical/Sporting

Production Type: Industrial
Country of manufacture: Taiwan
Blade: stainless steel 154CM
Blade treatment: black coating
Handle: titanium and G10
Blade length: 91mm.
Blade thickness: 2.9mm.
Total length: 215mm.
Weight: 123g.
Clip: removable, stainless steel
Closure: liner lock
Packaging: cardboard box with Boker Plus logos, zippered nylon pouch
Notes: design by Lucas Burnley - flipper opening system on ball bearings

As a Filipino martial arts enthusiast, Italian knife designer Alessandra De Santis of Hydra Design decided to design a Karambit knife for Boker Plus. These sickle-shaped knives originated in Southeast Asia and were preferably used for harvesting rice. In contrast, the Karambit from Boker Plus comes in a tactical guise. The black-coated 154CM Hawkbill blade effortlessly slices its way through cardboard and ropes, while the black G10 handle and sturdy linerlock provide much-needed safety on the job.

Light weight and high efficiency form the backbone of the pocket knife named after the Norse goddess of the underworld. As an alternative to the flipper opening, the knife offers a thumb stud screwed into the back of the blade whose shape also serves as an "Emerson Wave"-style opening. Alessandra De Santis' characteristic angular design elements are found in the G10 ring at the end of the handle. The flush, reversible clip allows for flexible knife carrying. Supplied with a high-quality nylon pouch.


Intended Use: Tactical

Production type: Industrial
Country of manufacture: Taiwan
Blade: stainless steel 154CM
Blade treatment: black coating
Handle: G10
Blade length: 61mm.
Blade thickness: 2.8mm.
Total length: 170mm.
Weight: 93g.
Clip: removable and reversible, stainless steel
Closure: LinerLock 
Packaging: zippered nylon pouch - cardboard box with Boker Plus logos
Notes: opening via Carson Flipper system on ball bearings and via "Emerson Wave" style pin - design by Alessandra De Santis

The Master Proven 1 - Performance Tested and Certified

The Master Proven 1 was designed by Master Sergeant Grady Burrell to meet the highest standards required by Masters Proven, a group of seasoned military veterans who test and certify equipment intended for use by military and law enforcement agencies.

Conceived during an overseas mission, this knife is designed to be unobtrusive, perfectly balanced and durable, suitable for everyday use and survival situations. “Balance is a crucial element in the design of a cutting weapon intended for combat or escape scenarios,” says Grady Burrell.

The GBMP1 sheath, made by First Spear, incorporates 6/9™ Modular Pocket Technology, an innovative system that provides excellent compatibility with existing MOLLE/PALS platforms, reducing weight and improving grip on equipment. Already adopted by US Special Forces, this technology offers significant advantages over traditional systems, facilitating the transition to even more advanced solutions such as the 6/12™ Modular Pocket Technology.

Intended Use: Tactical/Military
Type of Production: Midtech (semi-industrial)
Country of Manufacture: USA
Blade: full tang stainless steel 154CM 61HRC
Blade Finish: Black DLC (Diamond Like Coating)
Handle: made of G10 with 3D machining
Blade length: 102mm.
Blade thickness: 4mm.
Total length: 234mm.
Balance: on the lower guard branch
Weight: 145g.
Sheath: made of Nylon, with rigid ABS insert and M.O.L.L.E. attachments.
Packaging: cardboard box
Notes: Design by Grady Burrell