collection knives

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously purchased
* Condition: Like new, never taken out of its packaging.
* Commercially available: Discontinued
* Sharpening: Factory
* Marks on blade: None
* Marks on handle: None
* Box: Present
* Scabbard: /
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory

Coltelleria Collini exclusive - Available in only 33 numbered examples on blade and box

Intended use: collection / EDC / CQD

Type of production: industrial, limited
Blade: Japanese laminated stainless steel (San Mai) with cryogenically hardened 61.5HRC CoS cutting edge; with double concave shank in the strong of the blade
Blade treatment: satin finish
Country of manufacture: Italy
Handle: made of Titanium, machined from solid, with integral Frame Lock system with removable casement and safety made of stainless steel
Blade length: 75mm.
Blade thickness: 6.3mm.
Total length: 180mm.
Weight: 186g.
Clip: stainless steel, reversible, deep pocket type and with tip up port
Notes: tapered Skull Crasher engaged in the tang - Limited and numbered edition of only 33 pieces serialized on the blade and box
Box: cardboard, numbered, with ExtremaRatio and Coltelleria Collini logos

Extrema Ratio, on the occasion of the 10th anniversary of COM.FO.SE., presents a version in a limited series of only 70 pieces, "A.S.F.K. X BRIGATAE ANNIVERSARIUM LIMITED EDITION". 

A.S.F.K. (Assault Special Forces Knife) is the dagger dedicated to and acquired by the Army Special Forces Command. This model recalls the tradition of arditism and the bloody trench battles punctuated by assaults with a bladed weapon. A.S.F.K. is a trench knife reimagined with a modern twist.

A.S.F.K. X BRIGATAE ANNIVERSARIUM LIMITED EDITION comes in an IP67-certified watertight Polypropylene technical case with pressurization valve that is weatherproof, dustproof and shockproof. Inside is a metal plate with the numbering of the series limited to only 70 pieces.

Intended Use: Tactical/Collection

Type of production: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade finish: Burnishing Geotech Camo
Handle: Forprene
Blade Length: 162mm.
Blade thickness: 6.3mm.
Overall length: 289mm.
Balance: backward
Weight: 413g.
Sheath: cordura, M.O.L.L.E. compatible.
Packaging: thermoplastic collectible case with logos 
Notes: limited and numbered edition made in only 70 pieces

Produced in Olean, NY, in collaboration with the skilled people at KA-BAR knives, the Spartan-Harsey Kukri knife has been designed to be a highly durable hiking knife. The kukri features a blade of over 22cm, making it an all-around tool due to its center of mass, allowing the user to slice while cutting to even penetrate thick objects.

While this blade is primarily famous for its military use, the kukri is more commonly employed as a multi-purpose tool in fields and homes across Nepal. Its uses range from construction, clearing, cutting firewood, digging, butchering animals for food, slicing meat and vegetables, skinning animals, to opening cans.

It can function as a smaller knife using the narrower part of the blade closer to the handle. The heavier and wider end of the blade, towards the tip, functions as a hatchet or a small shovel.

Intended Use: Tactical / Military

Production Type: Industrial
Country of Production: USA
Blade: 1095 carbon steel 56/58HRC
Blade Finish: Black Powder Coating
Handle: Injection-molded Thermoplastic
Blade Length: 223mm
Blade Thickness: 6.3mm
Overall Length: 352mm
Weight: 580g
Sheath: Thermoplastic, with belt attachment and button retention system
Packaging: Cardboard box with Spartan Blades Professional Grade logos
Notes: Design by William W. Harsey Jr. - The Professional Grade series with Silver packaging identifies American production made by Ka-Bar entrusted to Pineland Cutlery (a company formed by Spartan Blades and Ka-Bar). In this series, you can find new products that combine the typical Spartan Blades designs with Ka-Bar's production experience to keep prices affordable for the public without having to sacrifice USA-made production.

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: Overall in very good condition.
* Commercially available Discontinued; Company no longer in operation as of 2017.
* Sharpening: Factory.
* Marks on blade: Normal marks, found on all Strider models with Tiger Stripe finish.
* Marks on handle: None
* Box: Originally sold unboxed
* Scabbard: Original, in Khaki-colored Cordura, by Eagle USA.
* Manuals, Certificates and Warranties:Originally sold without certificates or warranties.
* Checked and Certified by our in-house laboratory



Intended Use: Tactical / Collection

Type of manufacture:Midtech
Country of Production: USA
Blade: Stainless steel CPM-S30V
Blade Finish: Tiger Stripe
Handle: Black G-10 with GG (Gunner Grip) pattern
Blade length: 160mm.
Blade thickness: 6.3mm.
Total length: 298mm.
Weight: 353g.
Sheath: Khaki, cordura, by Eagle USA
Packaging: -
Notes: 2010 specimen in very good condition - Shows small scuff marks on the Tiger Stripe finish, which is common with any Strider model made with this matte blade finish - Strider knives have always been offered by the company without any box, packaging, manual or certificate - This historic company ceased operations in 2017, after a 25-year career - Mick Strider, the company's previous founding partner, is still in business and dedicated solely to making custom knives.

Knife withdrawn from private collection - Used, but overall in good condition - An iconic, iconic knife from the first decade of the 2000s, tested and selected by the U.S. Navy Seals - The knife already when new presented itself with an average low level of finish and with a rough micropeened blade already very delicate and marked, this knife, used in the field by an Italian soldier in theaters of war, shows signs of cosmetic wear on both blade and sheath that do not affect its functionality in the slightest - Factory sharpening still in excellent condition - Original amphibious scabbard, in very good condition - No box - Checked and certified by our in-house laboratory.

Intended Use: Tactical / Multirole

Type of Manufacture: industrial
Blade: A2 steel hardened to 57/58HRC
Country of Production: USA
Handle: made of Hytrel
Blade length: 140mm.
Blade thickness: 6.3mm.
Total length: 267mm.
Weight: 360g.
Sheath: amphibious, made of Hytrel
Packaging: without original packaging
Notes: used knife, withdrawn from private collection, overall in good condition

Reventon knife, no longer in production for years and limited to 2000 pieces, withdrawn from a private collection globally in excellent condition - Complete with everything, plastic box and certificates. Checked and certified by our internal laboratory.

Extrema Ratio was chosen by Automobili Lamborghini to produce the Reventón Folder, an emergency knife, belt cutter and glass breaker, designed by the Lamborghini Style Center, which becomes the official equipment of each of the 20 Reventón produced, the most exclusive supercar of the House of Bull.

The "Reventón Folder" is an accessory of the highest functional and aesthetic level, clearly in line with the philosophy of the car built with concepts and technologies directly borrowed from the most advanced aviation industry.

The knife is produced in a limited edition of 2,000 pieces, the first twenty equip the Reventón, the other 1980 pieces will be available for collectors.

Intended use: Collection

Type of production: Industrial
Production Lama: Italy
Blade: N690Co 58HRC stainless steel
Blade treatment: Testudo
Handle: Anticorodal
Blade length: 120mm.
Blade thickness: 6.3mm.
Closed length: 155mm.
Total length: 260mm.
Thick when closed: 21mm.
Balancing: -
Weight: 235g.
Closure: Back Lock with safety catch
Clip: -
Sheath: -
Packaging: plastic box with Lamborghini and Reventon logos
Notes: Specimen number 297 out of 2000, unique piece at our disposal

Absolutely like new - Comes from a private collection - Unique item made in 2020, prototype, does not correspond to any standard model of Wander Tactical production - Made entirely by hand.

Use: Collection / Utility / Hunting

Production type: Handcrafted
Country of Production: Italy
Blade: integral, japanese rolled steel (San Mai) with V-Toku2 (carbonaceous) cutting edge at 62/63HRC and SUS410 (stainless steel) outer cheeks
Blade finish: satin finish 
Handle: Paracord
Blade length: 90mm.
Blade thickness: 6.65mm.
Total length: 200mm.
Balance: backward
Weight: 180g.
Sheath: in kydex
Package: Certificate of authenticity
Notes: Unique piece of 2020 - Prototype: it doesn't correspond to any standard model of Wander Tactical production - Entirely hand made - Absolutely like new, coming from a private collection,

Japanese steel merges with Italian excellence

For this 2019/2020 collaboration, exclusive to Coltelleria Collini, we decided to propose a series of best sellers produced by Wander Tactical. 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. 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.

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 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 taken individually:

- 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 damascus pattern at the end of the processing are aesthetically elegant, refined and highly appreciated by collectors all over the world.

For further information: collinisteel

Knife withdrawn from a private collection - In like new condition - Never regrind - Checked and certified by our in-house Coltelleria Collini laboratory.

The Extrema Ratio Frame Rock is a new knife, based on the Ti-Rock project, a successful frame-lock knife made by Extrema Ratio in 2016 exclusively for Coltelleria Collini.

The Extreme Ratio Frame Rock is characterized by a titanium handle that offers great resistance while being very light. The integrity of the frame-lock system is guaranteed against wear by an easily replaceable hardened steel insert.

Unlike its drop-point predecessor, the Rock frame has a 75mm long, 6.0mm thick spearpoint blade fitted with a fuller for further lightening. The blade is made of Bohler N690 steel, heat treated to a hardness of 58 HRC. The same is available with a black finish with DLC treatment or satin.

To make opening even more fluid and without uncertainty, the blade rotates on ball bearings. This mechanism allows the user to adjust the force necessary to obtain the release of the blade from the closed position.

The shape of the reversible clip allows a hidden port in the pocket, making the knife not visible from the outside. The large and solid handle and the well-proportioned blade allow this knife to tackle heavy tasks. The Frame Rock weighs less than 200g, making it somewhat light for such a sturdy knife. Comes inside an ABS box.

Intended use: collection / CQD

Type of production: industrial,
Blade: N690Co stainless steel
Blade treatment: Satin finish
Country of production: Italy
Handle: Titanium, machined from solid, with integral Frame Lock closure system with removable flap and safety made of stainless steel
Blade length: 75mm.
Blade thickness: 6.3mm.
Total length: 181mm.
Weight: 193g.
Clip: stainless steel, reversible, deep pocket type and with tip up port
Notes: Conical Skull Crasher inserted in the tang
Box: in ABS with Extrema Ratio logos

For SOG's 20th anniversary in 2006, a new adaptation of the original SOG Bowie, one of the company's signature knives, was released. This oversized blade knife will amaze you with its precise and aesthetically accurate construction to that of the 1980s. Unlike the original, all parts are protected by a black TiNi coating to give the knife a more aggressive look and better performance.

Intended use: collection / tactical / military / vintage

Type of production: industrial
Blade: AUS-8 stainless steel
Blade finish: titanium nitriding
Handle: Leather rings
Blade length: 190mm.
Blade thickness: 6.5mm.
Total length: 326mm.
Balance: backward
Weight: 485g.
Scabbard: leather
Notes: -

Japanese steel blends with Italian excellence

For this 2020 collaboration, exclusive of Collini Cutlery, 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 used V-Toku2 carbonaceous at 62 / 63HRC for the central plate and SUS410 stainless steel for the two external plates, in order to guarantee a very high cutting capacity, penetration and sealing of the wire together with an ease of re-sharpening. and maintenance but at the same time the blade has a remarkable resistance to corrosion and an important increase in resilience given by the type of external steel and by the laminated structure.

Col Moschin model: for this First Production Run a run of 11 pieces was produced, numbered from 1 to 11.

Special purpose cutting knife, specially developed for the 9th Col Moschin Parachute Assault Regiment, elite unit of the Folgore brigade.

Use: tactical, sports, hiking, collection

Blade: integral, in laminated Japanese steel (San Mai) with V-Toku2 (carbonaceous) cutting edge at 62 / 63HRC and external SUS410 (stainless steel) scales
Handle: forprene
Blade length: 160mm.
Blade thickness: 6.5mm.
Total length: 290mm.
Balance: set back to 0.5cm. from the guard branch
Weight: 265g.
Sheath: modular tactical, from thigh or belt, in Nylon
Notes: Numbered edition - cardboard box with Extremaratio logos and certificate - being the cutting edge in carbon steel it is advisable, in order to keep the blade in perfect condition, to protect the edge with a light surface of oil.

As in the ancient Japanese Samurai swords.

Rolled steel - imported into Italy by Collini Steel directly from 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 tool life
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, on a galvanic level, a structure that improves corrosion resistance even on the wire.

- Easy processing even after heat treatment
although steel normally becomes harder after quenching, 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 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
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Japanese steel blends with Italian excellence

For this 2020 collaboration, exclusive of Collini Cutlery, 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 used V-Toku2 carbonaceous at 62 / 63HRC for the central plate and SUS410 stainless steel for the two external plates, in order to guarantee a very high cutting capacity, penetration and sealing of the wire together with an ease of re-sharpening. and maintenance but at the same time the blade has a remarkable resistance to corrosion and an important increase in resilience given by the type of external steel and by the laminated structure.

Col Moschin Compact model: for this First Production Run a run of 10 pieces numbered from 1 to 10 was created.

The lethality of the COL MOSCHIN knife in compact version. Supplied with rigid belt sheath and BELT-CLIP. The rigid sleeve can be positioned horizontally, vertically or in a 45 ° inclined position

Use: tactical, sports, hiking, collection

Blade: integral, in laminated Japanese steel (San Mai) with V-Toku2 (carbonaceous) cutting edge at 62 / 63HRC and external SUS410 (stainless steel) scales
Handle: forprene
Blade length: 110mm.
Blade thickness: 6.5mm.
Total length: 212mm.
Balance: set back to 0.5cm. from the guard branch
Weight: 209g.
Sheath: ABS with multi-position Tek-Lok attachment
Notes: Numbered edition - cardboard box with Extremaratio logos and certificate - being the cutting edge in carbon steel it is advisable, in order to keep the blade in perfect condition, to protect the edge with a thin surface of oil.

As in the ancient Japanese Samurai swords.

Rolled steel - imported into Italy by Collini Steel directly from 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 tool life
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, on a galvanic level, a structure that improves corrosion resistance even on the wire.

- Easy processing even after heat treatment
although steel normally becomes harder after quenching, 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 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

Japanese steel merges with Italian excellence

For this 2019/2020 collaboration, exclusive to Collini Cutlery, we have decided to offer a series of best sellers produced by Extrema Ratio. Knives made with the famous San Mai steel produced by the Japanese Takefu Steel. Specifically, for the central sheet we used the carbonaceous V-Toku2 at 62 / 63HRC and the stainless SUS410 for the two external sheets, in order to guarantee a very high cutting, penetration and sealing capacity of the wire together with an ease of regrinding and maintenance but at the same time the blade has a remarkable resistance to corrosion and an important increase in resilience given by the type of foreign steel and the laminated structure.

FULCRUM C model: for this First Production Run, a circulation of 10 pieces numbered from 1 to 10 was produced.

FULCRUM C is the compact version of FULCRUM, it maintains all the characteristics of solidity and robustness and, thanks to the reduced dimensions of the blade (only 110 mm) and the handle, it is easily portable and concealable. The rigid sheath can be positioned horizontally, vertically or in a 45 ° inclined position. The only safety of the sheath is automatic with extraction and re-insertion by pressure, this detail makes it an intuitive and extremely fast tool, particularly suitable for emergency use and for personal defense.

Use: backup knife
Blade: integral, in Japanese laminated steel (San Mai) with cutting edge in V-Toku2 (carbon) at 62 / 63HRC and external cheeks in SUS410 (stainless steel)
Blade thickness: 6.3 mm.
Blade length: 90 mm.
Total length: 210 mm.
Balancing: set back to 0.5cm. from the guard branch
Weight: 210g.
Sheath: ABS with Tek-Lok multiposition attachment
Notes: Numbered edition - cardboard box with Extremaratio logos and certificate

As in the ancient swords of the Japanese Samurai.

Rolled steel - imported into Italy from Collini Steel directly from the Japanese Takefu Steel - is based on the ancient Japanese tradition in the creation of the famous Samurai swords. Already in 1100 the expert Japanese blacksmiths in fact combined different materials 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 the swords from Samurai have been preserved to the present day 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: These are different types of metals bonded together to create a composite that encloses and intensifies the strengths of the metals taken individually:

- Longer tool life
thanks to the use of high quality steel with a high carbon content (V-Toku2, VG10, CoS, Shiro) or sintered (SPG2), in the heart of the sheet (Core Steel), the blade once hardened, reaches hardness and cutting performance significantly higher than that 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 lateral 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 also on the wire.

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

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

Japanese steel merges with Italian excellence

For this 2019/2020 collaboration, exclusive to Collini Cutlery, we have decided to offer a series of best sellers produced by Extrema Ratio. Knives made with the famous San Mai steel produced by the Japanese Takefu Steel. Specifically, for the central sheet we used the carbonaceous V-Toku2 at 62 / 63HRC and the stainless SUS410 for the two external sheets, in order to guarantee a very high cutting, penetration and sealing capacity of the wire together with an ease of regrinding and maintenance but at the same time the blade has a remarkable resistance to corrosion and an important increase in resilience given by the type of foreign steel and the laminated structure.

SHRAPNEL OG model: for this First Production Run, a circulation of 10 pieces numbered from 1 to 10 was produced.

SHRAPNEL OG is a truly multi-purpose "back-up", with strong combat attitudes. The leaf blade is characterized by a wide flat winding, with a narrow sharpening angle which makes it particularly sharp. The rigid sheath can be positioned horizontally, vertically or inclined at 45 °. The SHRAPNEL OG is produced without the top guard.

Use: tactical, sports, hiking, collection

Blade: integral, in Japanese laminated steel (San Mai) with cutting edge in V-Toku2 (carbon) at 62 / 63HRC and external cheeks in SUS410 (stainless steel)
Handle: forprene
Blade length: 90mm.
Blade thickness: 6.5mm.
Total length: 210mm.
Balancing: set back to 0.5cm. from the guard branch
Weight: 190g.
Sheath: ABS with Tek-Lok multiposition attachment
Notes: Numbered edition - cardboard box with Extremaratio logos and certificate

As in the ancient swords of the Japanese Samurai.

Rolled steel - imported into Italy from Collini Steel directly from the Japanese Takefu Steel - is based on the ancient Japanese tradition in the creation of the famous Samurai swords. Already in 1100 the expert Japanese blacksmiths in fact combined different materials 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 the swords from Samurai have been preserved to the present day 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: These are different types of metals bonded together to create a composite that encloses and intensifies the strengths of the metals taken individually:

- Longer tool life
thanks to the use of high quality steel with a high carbon content (V-Toku2, VG10, CoS, Shiro) or sintered (SPG2), in the heart of the sheet (Core Steel), the blade once hardened, reaches hardness and cutting performance significantly higher than that 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 lateral 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 also on the wire.

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

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

modern version of the classic USMC produced by Medford

Intended use: Tactical / Collection

Type of production: Custom
Lama production: U.s.a
Blade: S35VN steel
Blade treatment: S35VN
Handle: G10 3-D surfaced multi-colored
Blade length: 165mm.
Blade thickness: 6.5mm.
Total length: 290mm.
Balancing: set back 1.5 cm on the guard branch
Weight: 488g.
Sheath: custom in leather
Packaging: nylon case, with zip closure and Medford logos
Notes: Designed and built by Greg Medford

Destination of use: collection

Type of production: mid tech / semi-custom
Country of production: USA
Blade: 154CM stainless steel
Blade treatment: Satin
Handle: Carbon fiber
Blade length: 124mm.
Blade thickness: 6.3mm.
Total length: 254mm.
Balancing: on the guard branch
Weight: 220g.
Sheath: Kydex
Packaging: cardboard with logos Brian Tighe and Friends, Design by Brian Tighe
Notes: numbered series

The particular situation created in the early years of the 1914/18 war, now mired in increasingly complex and protected trenches and fortifications, favored the formation of men who, little by little, specialized in the coup.

Our assault units, the Arditi, had their dagger. It was obtained from the pieces cut away by the long blades of the Vetterli 1870 bayonets, which in the narrow trenches, in the corridors, between the reticulars were only an obstacle. It was certainly a rustic weapon, of recovery, not too beautiful but certainly inexpensive, light, not cumbersome and in expert hands also effective.

Today, on the occasion of the centenary, we recall this important page of Italian military history with a limited celebratory series in only 100 numbered copies. This version has a satin blade and a walnut wood handle and is sold with a wooden box and leather sheath.

Intended use: Tactical / Military / Collection

Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Satin
Handle: Walnut wood
Blade length: 167mm.
Blade thickness: 6.3mm.
Total length: 270mm.
Weight: 224g.
Sheath: leather thigh-strap
Packaging: wooden box
Notes: Limited edition in 100 numbered copies - Edition to celebrate the hundred years of the Italian Arditi

Kiku Matsuda is one of the most famous artisans and scholars of all over Japan; Probably in your collection you will already have a knife that is the fruit of your passion. For several years he has collaborated with SOG, William Henry, Pro-Tech and Randall Kings, developing blades, sharpening and burring.

Purpose of use: Collection / Sportsman

Type of production: Artisan
Blade Production: Japan
Blade: OU-31 carbon steel hardened to 63/64 HRC
Blade Treatment: -
Manicure: Black Canvas Micarta
Blade Length: 140mm.
Blade thickness: 6.5mm.
Closed length: -
Total Length: 270mm.
Closure thickness: -
Balance: -
Weight: 384g.
Closure: -
Clip: -
Sheath: in Kydex with Tek-Lok attachment
Packing: -
Notes: Kiku Matsuda won the prestigious prize at the Blade Show "Knife Of The Year Awards" in 2007 with a project made in collaboration with SOG

Folding knife made upon specific requests of the department of the Italian Army 185 ° RAO ( Target Acquisition Regiment ) and is now included the eponymous department . The knife supplied differs from the calendar for the total lack of writings or logos on the blade.

Limited Edition RAO model characterized by a satin blade in Japanese rolled steel produced by Takefu Steel. to the central plate and the 420J2 (56 HRC) In the specific CoS it is used to 61,5HRC (Cobalt Special deemed superior mechanically by 25% compared to the already appreciated VG10) for the two side plates, in order to have a very high capacity cutting but at the same time a remarkable resilience and resistance to oxidation.
folding knife made upon specific requests of the Italian Department of the Army 185th RAO (Regiment Acquisition Objectives) and currently supplied to the homonymous department. The knife supplied differs from that only civil to the total lack of written or logos on the blade.

Intended Use: Military / Tactical

Type of production: Industrial
Production Lama: Italy
Blade: (San Mai) Japanese-rolled stainless steel with sharp CoS to 61,5HRC in cryogenic tempering
Lama Treatment: Testudo
Handle material: anticorodal 4.5mm
Blade length: 118mm.
Blade Thickness: 6.3mm.
Length closed: 142
Overall length: 261mm.
Balancing: -
Weight: 335g.
Closure: front modified lock - threaded safety pin
Clip: -
Sheath: tactical nylon by Vega with M.O.L.L.E. attacks suitable for both the closed knife that open - color BLACK
Notes: sharpening the included Diamond

A Coltelleria Collini Exclusive - Limited edition, available in only 33 serialized pieces

Intended Use: collection / EDC / CQD

Type of production: Industrial, Limited
Blade: Japanese-rolled stainless steel (San Mai) with sharp CoS to 61,5HRC in cryogenic quenching; with fuller double concave in the strong blade
Blade treatment: Satin finish
Production Country: Italy
Handle: Titanium, Billet, with full Frame Lock locking system with sash and secure removable made of stainless steel
Blade length: 75mm.
Blade Thickness: 6.3mm.
Overall length: 180mm.
Weight: 186g.
Clips: stainless steel, reversible type deep pocket and port tip up
Notes: Skull Crasher tapered shank engaged in - Edition limited and numbered edition in only 33 serialized pieces on the blade and box
Box: cardboard, numbered, with ExtremaRatio logos and Coltelleria Collini

A Coltelleria Collini Exclusive - Limited edition, available in only 33 serialized pieces

Intended Use: collection / EDC / CQD

Type of production: Industrial, Limited
Blade: Japanese-rolled stainless steel (San Mai) with sharp CoS to 61,5HRC in cryogenic quenching; with fuller double concave in the strong blade
Blade treatment: Satin finish
Production Country: Italy
Handle: Titanium, Billet, with full Frame Lock locking system with sash and secure removable made of stainless steel
Blade length: 75mm.
Blade Thickness: 6.3mm.
Overall length: 180mm.
Weight: 186g.
Clips: stainless steel, reversible type deep pocket and port tip up
Notes: Skull Crasher tapered shank engaged in - Edition limited and numbered edition in only 33 serialized pieces on the blade and box
Box: cardboard, numbered, with ExtremaRatio logos and Coltelleria Collini

A Coltelleria Collini Exclusive - Limited edition, available in only 33 serialized pieces

Intended Use: collection / EDC / CQD

Type of production: Industrial, Limited
Blade: Japanese-rolled stainless steel (San Mai) with sharp CoS to 61,5HRC in cryogenic quenching; with fuller double concave in the strong blade
Blade treatment: Satin finish
Production Country: Italy
Handle: Titanium, Billet, with full Frame Lock locking system with sash and secure removable made of stainless steel
Blade length: 75mm.
Blade Thickness: 6.3mm.
Overall length: 180mm.
Weight: 186g.
Clips: stainless steel, reversible type deep pocket and port tip up
Notes: Skull Crasher tapered shank engaged in - Edition limited and numbered edition in only 33 serialized pieces on the blade and box
Box: cardboard, numbered, with ExtremaRatio logos and Coltelleria Collini

Collectors Edition with:

* Box of ABS branded laser
* Tactical Kydex scabbard and leather, handcrafted
* Attack Tek-Lok
* Lanyard black paracord with custom anodized titanium wire stop with slogans and Extrema Ratio Knives Collini

Only two specimens at our disposal: Number 4 of 100 and number 9 of 100

This is a Collini Cutlery Exclusive - Only available in 100 serialized pieces

Intended Use: collection / EDC / CQD
Type of production: industrial, Limited
Blade: N690 stainless steel in 58HRC with hollow ground fuller
Blade Treatment: Black Testudo
Blade Production: Italy
Handle: Titanium machined from solid.
Closing system: Frame Lock with swing and safe removable stainless steel
Blade length: 75mm.
Blade Thickness: 6.3mm.
Overall length: 180mm.
Weight: 190g.
Clips: stainless steel, reversible, deep pocket, tip up
Notes: Conical Skull Crasher engaged in the shank - Limited and serialized edition in only 100 pieces
Box: Cardboard, serialized, with Extrema Ratio and Coltelleria Collini logos

For this new exclusive collaboration with Extrema Ratio we decided to propose a best seller in the world of cutlery, the Shrapnel model. It's a satin blade version but the most important thing is that has been used, for the first time in Italy, the famous Japanese Steel San Mai produced by Takefu Steel. Specifically, we used the CoS (Cobalt Special, considered mechanically superior by 25% compared to the already appreciated VG10) for the central plate and the 420J2 (55 HRC) for the two side plates, in order to have a high cutting capacity, but at the the same time a remarkable resilience and resistance to oxidation.

A First Production Run of 30 pieces has been made.

SHRAPNEL OG is a truly versatile “back up” knife with marked combat qualities. Its leaf-shaped blade is flat ground at a characteristically low angle to a wide, extraordinarily sharp edge. The included hard sheath can be worn vertically, horizontally or obliquely (at a 45° angle). Tthe SHRAPNEL OG hilt design does not include a guard.

Use: tactical , sports , hiking , collection
Blade: Full , Japanese- rolled stainless steel ( San Mai) with sharp CoS to 61,7HRC in cryogenic tempering
Handle: Forprene
Blade length: 90mm.
Blade Thickness: 6.5 mm.
Overall length: 210mm.
Balancing: back to 0.5cm . by guard branch
Weight: 214g.
Sheath: ABS with Tek - Lok multi attack
Notes: cardboard box with Extremaratio logos and certificate

Clad Metal
It is a composite metal partly or entirely diffusion bonded together of different kinds of metals.

Metal composition shows higher performance which respective materials alone do not possess and the performance complements opposite characteristics of each material, that is "compound characteristics"

Clad Effect on Cutleries

Toughness
Like Japanese swords, clad metal is hard to break or bend, thanks to the toughness as the hard steel part is clad with soft steels.
Easy to work on
Cladded structure is easy to apply on such works as forging, grinding, sharpening or polishing to make a sharp blade.

Improved corrosion resistance　　　　
Proper material combination generates electrical potential difference and it enhances the corrosion resistance on blade edge.

Better and long lasting sharpness
Steel after forging pressure makes the microscopic structure denser and improves the sharpness and ensures long lasting performance.

Resource saving
As high class steel is used only for necessary part, it is perfectly cost effective..

Easy distortion correction
As the steel is bonded with soft steel materials, its blade is hard to break and the distortion correction is easy.

Easy drilling and welding after heat treatment
Though the steel gets harder after heat treatment, the soft steel never loses its softness, enabling the material to be drilled or welded.

Design improvement
Laminated patterns or Damascus patterns appear from basis materials which are bonded with different kinds of metals.

Commissioned and officially adopted in 2002 by the famous 9th Regiment. Raiders "Col Moschin", this model expresses the quintessence of pure combat knife.

Inspired by daggers with asymmetric blade and straight handle but oriented Arditi, from which the Regiment traces its vestiges, it was reworked in a modern way.
The center of gravity is strong backlog, particularly the tip piercing. And 'light, handy and intuitive. Each new intruder receives one, and each new intruder is trained to use it.

All knives of this series have straight handles KRATON from ergonomic design whose shape and size favors besides a solid grip the rapid change of straight handle (Sabre Grip) to upside (Reverse Grip). An Allen screw stainless steel allows the campaign from disassembly for maintenance and lubrication of the through shank increasing the operational life of the knife.

The sheath and 'suitable all'aviolancio and underwater operations and amphibious and is' applicable to the belt or the accoutrements.

Intended Use: Collection / Tactical / Military

Production Country: Italy
Blade: N690Co 58HRC stainless steel
Surface treatment: Black PVD
Handle: Removable Kraton
Blade length: 160mm.
Blade Thickness: 6.3mm.
Overall length: 290mm.
Balancing: backward, 1 cm. the branch of the lower guard
Weight: 265g.
Sheath: tactical modular, from thigh or belt, Nylon
Notes: Limited Edition with exhibitor in Plexyglass

** SOLD OUT - OUT OF STOCK AND OUT OF PRODUCTION ** 

This is a Collini Cutlery Exclusive - Only available in 100 serialized pieces

Intended Use: collection / EDC / CQD
Type of production: industrial, Limited
Blade: N690 stainless steel in 58HRC with hollow ground fuller
Blade Treatment: Black Testudo
Blade Production: Italy
Handle: Titanium machined from solid.
Closing system: Frame Lock with swing and safe removable stainless steel
Blade length: 75mm.
Blade Thickness: 6.3mm.
Overall length: 180mm.
Weight: 190g.
Clips: stainless steel, reversible, deep pocket, tip up
Notes: Conical Skull Crasher engaged in the shank - Limited and serialized edition in only 100 pieces
Box: Cardboard, serialized, with Extrema Ratio and Coltelleria Collini logos

Medford Knife and Tools - NAV-T Tactical Coyote - knife

Intended use: Tactical / Collection

Type of production: Custom
Production Lama: Use
Blade: Stainless D2
Treatment Lama: -
Handle material: paracord woodland
Blade length: 95mm.
Blade thickness: 6.5mm.
Overall length: 230mm.
Balancing: on the branch of guard
Weight: 330g.
Sheath: kydex coyote
Packing: Nylon pouch with zipper and logos Medford
Notes: Designed and built by Greg Medford

Destinazione d'uso: Tattico/Sub

Tipo di Produzione: industriale
Lama: in Titanio Beta con finitura micropallinata
Produzione Lama USA
Manicatura: Hytrel
Lunghezza lama: 140mm.
Spessore della lama: 6.3mm.
Lunghezza totale: 267mm.
Bilanciatura: -
Peso: 240g.
Chiusura: -
Clip: -
Fodero: in Hytrel
Confezione: scatola di cartone con loghi Mission
Note: -

Intended use: Tactical / Military / Collection

Production Type: Handmade
Production Lama USA
Blade: Stainless Steel CPM-S30V
Treatment Blade: Black KG 2402 F
Handle: G-10 Hand Sculptured
Blade length: 145mm.
Blade thickness: 6.3mm.
Length closed: -
Overall length: 268mm.
Thick when closed: -
Balancing: -
Weight: 416g.
Closure: -
Clip: -
Sheath: Hand maded, Kydex with belt loop IWB
Packaging: Cardboard box with Crusader Forge logos
Notes: Modified version, which differs from the basic model normally for sale: slightly longer blade and handle, thumbstood double groove. Only one piece maded.

Destinazione d'uso: Tattico/Collezione

Tipo di produzione: Custom
Produzione Lama: Usa
Lama: In acciaio D2
Trattamento Lama: -
Manicatura: paracord green
Lunghezza lama: 95mm.
Spessore lama: 6.5mm.
Lunghezza totale: 230mm.
Bilanciatura: sul ramo di guardia
Peso: 330g.
Fodero: kydex
Confezione: astuccio in nylon, con chiusura a zip e loghi Medford
Note: Disegnato e costruito da Greg Medford

Destinazione d'uso: Tattico/Collezione

Tipo di produzione: Custom
Produzione Lama: Usa
Lama: In acciaio D2
Trattamento Lama: -
Manicatura: paracord
Lunghezza lama: 105mm.
Spessore lama: 6.5mm.
Lunghezza totale: 240mm.
Bilanciatura: sul ramo di guardia
Peso: 378g.
Fodero: kydex
Confezione: astuccio in nylon, con chiusura a zip e loghi Medford
Note: Disegnato e costruito da Greg Medford

Destinazione d'uso: Tattico/Collezione

Tipo di produzione: Custom
Produzione Lama: Usa
Lama: In acciaio D2
Trattamento Lama: -
Manicatura: paracord
Lunghezza lama: 105mm.
Spessore lama: 6.5mm.
Lunghezza totale: 240mm.
Bilanciatura: sul ramo di guardia
Peso: 378g.
Fodero: kydex
Confezione: astuccio in nylon, con chiusura a zip e loghi Medford
Note: Disegnato e costruito da Greg Medford

Extrema Ratio is proud to present the Culter Venatorius that, so as not to contradict the current address is a technical knife, practical, perhaps a bit 'specialized and that gives a nod to tradition and to the tastes of the most traditionalist hunters who like to do everything yourself.

The Latin motto engraved on the blade reads:

"I am the hunting knife, I am the claw beak and fang of my master. My job is as old as the flesh and blood.", We find that describes significantly the pure essence of the instrument.

We feel to say that if a tool could be capable of humor probably would have added: "It 'a dirty job ... but someone has to do it ...".

The Culter Venatorius, more than a knife, is a complete equipment for slaughtering and skinning of medium and medium-large sized prey, suitable for ungulate hunters.

The kit includes: a knife to slaughter and general use, one skinner provided with cross handle to skin and clean the internal organs the animal, a carver to skin head and snout and a stone with two grains for regrinding of all instruments.

These accessories are contained in the sleeve pocket leather fat-crafted.

The sheath while maintaining the traditional lines, is completely reversible (both the pocket that the passer can be disassembled and applied on the other face of the sheath) and to secure the side which holds the knife has the ambidextrous release. The sheath is handmade by a master saddler leather first-aged choice.

And 'possible to bring the sheath is vertical to the belt connected to the leg, which in a comfortable horizontal position, the shoulder or stopped at the waist with a long belt kit with buckle and snap hooks.

The handle in cocobolo oiled is long enough to allow the use of the knife as a little machete or chopper and thin enough to allow precision cuts.

The blade is in the classic Bohler N690, an excellent steel chrome molybdenum vanadium and cobalt which deserved to become a standard in technical and professional cutlery.

The finish is satin.

The Culter Venatorius is dedicated to all those who wish an Extrema Ratio as batting partner.

- BLADE LENGTH: mm 195
- LENGTH: 340 mm
- BLADE THICKNESS: 6.3 mm
- WEIGHT: 360 g
- BLADE STEEL: BOHLER N690 (58HRC)
- HANDLE MATERIAL: Cocobolo oiled
- GEAR: NO
- SURFACE FINISH / TREATMENT: Satin
- LIMITED EDITION: 300 pieces (serial number on the blade in Roman numerals)

Hogue - EX-F01 5.5 "Fixed Drop Point Black Kote - G-10 G-Mascus Desert knife

Intended Use: Tactical

Type of production: Industrial
Production Lama USA
Blade: full tang stainless steel A2 to 57/59HRC
Treatment Blade: Black Kote
Handle: G-10 worked with 3D drawings G-Mascus
Blade length: 139mm.
Blade thickness: 6.3mm.
Length closed: -
Total length: 266mm.
Thick when closed: -
Balance: -
Weight: 310g.
Closing: -
Clip: -
Sheath: Ballistic Nylon with rigid insert and attacks SPRINGS
Packaging: Cardboard box with logos Hogue
Notes: Torx removable contained in the handle - Design by Allen Elishewitz

Hogue - EX-F01 5.5 "Fixed Drop Point Black Kote - G-10 G-Mascus Green knife

Intended Use: Tactical

Type of production: Industrial
Production Lama USA
Blade: full tang stainless steel A2 to 57/59HRC
Treatment Blade: Black Kote
Handle: G-10 worked with 3D drawings G-Mascus
Blade length: 139mm.
Blade thickness: 6.3mm.
Length closed: -
Total length 266mm.
Thick when closed: -
Balance: -
Weight: 310g.
Closing: -
Clip: -
Sheath: Ballistic Nylon with rigid insert and attacks SPRINGS
Packaging: Cardboard box with logos Hogue
Notes: Torx removable contained in the handle - Design by Allen Elishewitz

Intended Use: Tactical

Type of production: Industrial
Production Lama USA
Blade: full tang stainless steel A2 to 57/59HRC
Treatment Blade: Black Kote
Handle: G-10 worked with 3D drawings G-Mascus
Blade length: 178mm.
Blade thickness: 6.3mm.
Length closed: -
Total length: 305mm.
Thick when closed: -
Balance: -
Weight: 356g.
Closing: -
Clip: -
Sheath: Ballistic Nylon with rigid insert and attacks SPRINGS
Packaging: Cardboard box with logos Hogue
Notes: Torx removable contained in the handle - Design by Allen Elishewitz