Sport, Military and Collectible Knives | Coltelleria Collini

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

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

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)

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)

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).

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)

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).

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).

Intended use: Tactical / Collection

Type of production: Industrial
Country of production: Taiwan
Blade: D2 steel
Blade treatment: Black Titanium Nitride
Handle: 6061-T6 Black Titanium Nitride Aluminum
Blade length: 61mm.
Blade thickness: 5.2mm.
Length closed: 125mm.
Total length: 180mm.
Weight: 173g.
Closing: Side Lever (modified back lock)
Clip: in stainless steel, retractable
Packaging: cardboard box with CRKT logos
Notes: Design by Joe Caswell