Knife - Essential Tool for Camping, Outdoor Adventure and collection

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

Intended Use: Neck Knife / Hiking / Utility

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

KNIFE WITHDRAWN FROM A PRIVATE COLLECTION
* Origin: Withdrawn from a private individual, previously purchased
* Condition: USED
* Commercially available: available
* Sharpening: resharpened by our internal laboratory
* Signs on the blade: has superficial scratches on the entire blade on both sides of the blade (visible in the photos) which do not compromise the quality but only the aesthetics
* Signs on the handle: None
* Box: YES
* Sheath: Yes
* Manuals, Certificates and Guarantees: Yes
* Checked and Certified by our internal laboratory

The Giant Mamba has a tanto blade in Böhler N690 steel, 6.3 mm thick with a hardness of 58 HRC, flat edge and full-length lightening fuller.

The Forprene handle with threaded tang lock makes the knife solid and well-balanced. The sheath, M.O.L.L.E. compatible, is made of shock-absorbing nylon with a conical guide for quick insertion and extraction and a system that prevents shaking noises, it is equipped with a two-button safety flap, a thigh with anti-rotation rubber reinforcement and an ambidextrous reversible safety: simply pressing the trigger unlocks the blade.

Intended use: Tactical / Multi-role

Type of production: Industrial
Country of production: Italy
Blade: N690Co 58HRC stainless steel
Blade treatment: Mil-C-13924 burnishing
Handle: Forprene
Blade length: 163mm.
Blade thickness: 6.3mm.
Total length: 293mm.
Weight: 289g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

Released in 2023, the Stitch RAM-LOK debuted with the MSI (Microtech Standard issue) as the first Microtech blade equipped with its fantastic RAM-LOK technology. This rugged take on the sleeper latch features Microtech's distinctive stepped pattern, made famous by the Ultratech series of trigger switches.

The Microtech Stitch is a beautiful tactical collaboration between Tony Marfione and Sebastijan Berenji, AKA Borka. It takes Sebastijan's fantastic Stitch design and combines it with Tony's superb opening mechanisms to create one of the most beautiful manufacturing collaborations ever.

Intended Use: Tactical/Military

Production Type: Midtech
Country of manufacture: USA
Blade: M390 stainless steel 60-61HRC
Blade Finish: Black PVD
Handle: Textured aluminum
Blade length: 92mm.
Blade thickness: 4mm.
Length closed: 129mm.
Total length: 217mm.
Thickness when closed:15mm.
Weight: 156g.
Closure: RAM-LOK (Crossbar Lock / Axis Lock)
Clip: stainless steel, removable and reversible (tip up)
Packaging: cardboard box with Microtech USA logos
Notes: Design by Anthony Marfione & Borka Blades

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased.
* Condition: Like new
* Commercially available: Discontinued, only made in 30 pieces
* Sharpening: Factory sharpened
* 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

Use: tactical, sporting, hiking, collection

Blade: integral, rolled Japanese stainless steel (San Mai) with 61.5HRC cryogenically hardened CoS cutting edge
Handle: forprene
Blade length: 90mm.
Blade thickness: 6.5mm.
Total length: 210mm.
Balance: set back 0.5cm. from the guard branch
Weight: 214g.
Sheath: ABS with multi-position Tek-Lok attachment
Notes:  new knife, withdrawn from private collections

Released in 2023, the MSI (Microtech Standard Issue) is the first Microtech knife to feature the fantastic RAM-LOK technology. This sturdy reinterpretation of the sleeper lock features Microtech's distinctive stepped pattern, made famous by the Ultratech series trigger switches. The wide blade cutout provides ample room for reverse middle finger movement and standard slow-rotation thumb opening, with or without gloves. If neither is preferred, simply pull down on the RAM-LOK and the blade opens with a flick of the wrist. Injection-molded handles offer excellent grip potential with both standard and inverted grips. Rugged, durable, great value and made in the USA, we know the MSI will quickly become a favorite of everyone in the knife community.

Intended Use: Tactical/Sporting

Type of production: Industrial
Country of Production: USA
Blade: Stainless steel M390MK 60-61HRC
Blade Finish: Apocalyptic
Handle: Injection molded polymer
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 129mm.
Total length: 226mm.
Thickness when closed: 15mm.
Weight: 128g.
Closure: Ram-Lok (Crossbar Lock / Axis Lock)
Clip: stainless steel, removable and reversible (tip up)
Packaging: cardboard box with Microtech USA logos
Notes: -

The Arbiter concept was originally sketched out by Adam Marfione in 2012. Microtech is excited to bring this piece into production as Adam begins to become an integral part of the team. Previously available only as a custom knife, the Arbiter features a 9" bowie-style clip point blade with an elegant curved primary cutting edge that flows into a raised tip with devastating penetrating power. The G10 grips feature a crisscross pattern and grooves along the edge of the handle that provide an impressive grip, creating a perfect harmony between user and tool. The Arbiter comes with a custom Blade-Tech carry system attached to the molded composite scabbard.

Intended Use: Tactical

Type of manufacture: Midtech
Country of manufacture: USA
Blade: M390 stainless steel 60-61HRC
Blade Finish: Apocalyptic
Handle: G10
Blade length: 229mm.
Blade thickness: 4mm.
Total length: 362mm.
Weight: 504g.
Sheath: made of Kydex Carbon Fiber, with steel clip
Packaging: cardboard box with Microtech USA logos
Notes: -

The Socom Elite sets the highest standards for tactical/utility cutlery. Since the inception of the original Socom in 1996, it has pioneered the entire line of Microtech folding knives. Over the years, many improvements have been made that have made the Socom more adaptable to different environments. You know you are buying the best tool on the market, regardless of which unique blade you choose: the clip point or the tanto. An integrated glass breaker at the base of the handle and a large pivot that allows easy opening with a glove add to its stature. The Socom's rugged reliability makes it the first choice of the special operations community.

Intended Use: Tactical/Military

Type of manufacture: midtech
Country of manufacture: USA
Blade: M390 stainless steel 60-61HRC
Blade Finish: Apocalyptic
Handle: Anodized aluminum with textured non-slip inserts
Blade length: 100mm.
Blade thickness: 5mm.
Length closed: 133mm.
Total length: 230mm.
Thickness when closed:13mm.
Weight: 149g.
Closure: Sub Liner Lock
Clip: stainless steel, removable(tip down)
Packaging: cardboard box with Microtech USA logos
Notes: tungsten carbide frangible integrated in the tang

Released in 2023, the MSI (Microtech Standard Issue) is the first Microtech knife to feature the fantastic RAM-LOK technology. This sturdy reinterpretation of the sleeper lock features Microtech's distinctive stepped pattern, made famous by the Ultratech series trigger switches. The wide blade cutout provides ample room for reverse middle finger movement and standard slow-rotation thumb opening, with or without gloves. If neither is preferred, simply pull down on the RAM-LOK and the blade opens with a flick of the wrist. Injection-molded handles offer excellent grip potential with both standard and inverted grips. Rugged, durable, great value and made in the USA, we know the MSI will quickly become a favorite of everyone in the knife community.

Intended Use: Tactical/Sporting

Type of production: Industrial
Country of Production: USA
Blade: Stainless steel M390MK 60-61HRC
Blade Finish: Black PVD
Handle: Injection molded polymer
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 129mm.
Total length: 226mm.
Thickness when closed: 15mm.
Weight: 128g.
Closure: Ram-Lok (Crossbar Lock / Axis Lock)
Clip: stainless steel, removable and reversible (tip up)
Packaging: cardboard box with Microtech USA logos
Notes: -

Released in 2023, the Stitch RAM-LOK debuted with the MSI (Microtech Standard issue) as the first Microtech blade equipped with its fantastic RAM-LOK technology. Rugged, durable and made in the USA, we know it will quickly become a favorite of everyone in the knife community.

The Microtech Stitch is a beautiful tactical collaboration between Tony Marfione and Sebastijan Berenji, AKA Borka. It takes Sebastijan's fantastic Stitch design and combines it with Tony's superb opening mechanisms to create one of the finest manufacturing collaborations ever.

Intended Use: Tactical/Military

Production Type: Midtech
Country of manufacture: USA
Blade: M390 stainless steel 60-61HRC
Blade Finish: Stonewashed
Handle: G-10 Textured
Blade length: 92mm.
Blade thickness: 4mm.
Length closed: 129mm.
Total length: 217mm.
Thickness when closed:15mm.
Weight: 160g.
Closure: RAM-LOK (Crossbar Lock / Axis Lock)
Clip: stainless steel, removable and reversible (tip up)
Packaging: cardboard box with Microtech USA logos
Notes: Design by Anthony Marfione & Borka Blades

The Amphibian is a true Marfione classic dating back over 20 years. It comes from a bygone era when Microtech knives could be both automatic and manual--in one. Here we have the manual version that incorporates Tony's RAM-LOK design with a reversible pocket clip and two thumb studs for a fully ambidextrous knife that sacrifices nothing in any way. It features Bohler's proprietary M390MK steel, available only from Microtech Knives. The knife is similar to the MSI Microtech Standard in terms of size, but when it comes to style, there is no comparison. The Amphibian is one of the finest tactical knives ever, and we are happy to see it available again for the masses!

Intended Use: Tactical/Military

Type of manufacture: Midtech
Country of manufacture: USA
Blade: Stainless steel M390MK 60-61HRC
Blade Finish: Apocalyptic
Handle: G10 Black
Blade length: 105mm.
Blade thickness: 4mm.
Length closed: 140mm.
Total length: 235mm.
Thickness when closed: 17mm.
Weight: 180g.
Closure: Ram-Lok (Crossbar Lock / Axis Lock)
Clip: titanium machined from billet, removable and reversible
Packaging: cardboard box with Microtech USA logos
Notes: Design by Anthony Marfione

The name "Mato Grosso," comes from Portuguese and means "dense bush," recalling the South American region of the same name. This machete is specially designed to cut through the dense vegetation of tropical forests due to its long, narrow blade. It can be used to cut tall, dense grass, thin vegetation, cut branches and open paths in the most inaccessible forests.

Its forprene handle makes it easy to use. The drop blade, milled from Böhler N690 steel hardened to 58 HRC for the best balance of edge hold and strength, is 309 mm long, 4 mm thick and has a flat edge.

Mato Grosso comes with a black Cordura sheath equipped with an M.O.L.L.E. system that allows it to be carried on tactical vests and belts.

Intended Use: Chopper / Machete

Type of production: Industrial
Country of manufacture: Italy
Blade: stainless steel N690Co hardened to 54HRC
Blade Treatment: Satin finish
Handle: Forprene
Blade Length: 280mm.
Blade thickness: 4mm.
Total length: 450mm.
Weight: 370g.
Sheath: Nylon with belt and M.O.L.L.E. type attachments.
Packaging: cardboard box with Extrema Ratio logos
Notes: Designed and conceived to cut through the dense broadleaf vegetation typical of tropical and rainforests.

A well-motivated classic. The "kukri," the Nepalese multi-purpose tool made famous by Rgt. Gurka, in the service of His Britannic Majesty and derived from ancient Greek falcate swords.

The blade of this machete has differentiated roundings. Near the handle the blade is razor rounded so that a narrow sharpening angle can be achieved without unduly affecting the thickness of the back material, which must remain solid. The rounding at the end of the blade, on the other hand, is flat and well angled so as to effortlessly penetrate wood and vegetation.

Usually these kinds of tools are made of soft steel to be more elastic and more easily resharpened. Extrema Ratio has succeeded in obtaining an elastic tool with a decidedly long-lived and durable sharpening by using instead a hard steel such as BÖHLER N690. This machete comes with a thigh scabbard with black Cordura storage pocket and safety carry strap.

Intended Use: Tactical/Military

Blade: N690Co 58HRC stainless steel
Handle: Kraton
Blade length: 340mm.
Blade thickness: 6.3mm.
Blade finish: satin finish
Total length: 493mm.
Balance: advanced
Weight: 650g.
Sheath: Tactical, Nylon, thigh-high

Microtech Socom knives are named after the United States Special Operations Command, abbreviated to Socom; an operational command under the United States Department of Defence Special Operations Command. Under its jurisdiction are some very famous units, such as the Navy SEALs, Air Force PJs, Army Rangers and others. A knife that borrows such a name must mean business, and the Microtech Socom series does just that! Thanks to high-quality materials that can withstand the rigours of the battlefield. Knives built to last.

The Microtech Signature Series is designed for customers looking for a more exclusive option than the already excellent standard models. Depending on the model, they are distinguished by the use of first-class materials and finishes: e.g. carbon fibre, copper, Damascus and DLC.

Intended use: Tactical / Sporting

Production type: Midtech
Country of manufacture: USA
Blade: Stainless steel M390 60-61HRC
Blade Finish: Dark Dual Tone, Black Dark Washed and Black DLC
Handle: Carbon Fibre with DLC treated screws
Blade length: 137mm.
Blade thickness: 4mm.
Total length: 265mm.
Weight: 212g. (273g. including scabbard)
Sheath: Carbon fibre Kydex, with steel clip
Packaging: cardboard box with Microtech USA logos
Notes: -

Microtech Socom knives are named after the US Special Operations Command, abbreviated to Socom; an operational command under the US Department of Defence Special Operations Command. Under its jurisdiction are some very famous units, such as the Navy SEALs, Air Force PJs, Army Rangers and others. A knife that borrows such a name must mean business, and the Microtech Socom series does just that! Thanks to high-quality materials that can withstand the rigours of the battlefield. Knives built to last.

The Microtech Signature Series is designed for customers looking for a more exclusive option than the already excellent standard models. Depending on the model, they are distinguished by the use of first-class materials and finishes: e.g. carbon fibre, copper, Damascus and DLC.

Intended use: Tactical / Sporting

Production type: Midtech
Country of manufacture: USA
Blade: Stainless steel M390 60-61HRC
Blade Finish: Dark Dual Tone, Black Dark Washed and Black DLC
Handle: G10 Urban Camo
Blade length: 95mm.
Blade thickness: 4mm.
Total length: 207mm.
Weight: 186g. (297g. including scabbard)
Sheath: Kydex Carbon Fibre, with Tek-Lok type attachment
Packaging: cardboard box with Microtech USA logos
Notes: -

Released in 2023, the MSI (Microtech Standard Issue) is the first Microtech knife to feature the fantastic RAM-LOK technology. This sturdy reinterpretation of the sleeper lock features Microtech's distinctive stepped pattern, made famous by the Ultratech series trigger switches. The wide blade cutout provides ample room for reverse middle finger movement and standard slow-rotation thumb opening, with or without gloves. If neither is preferred, simply pull down on the RAM-LOK and the blade opens with a flick of the wrist. Injection-molded handles offer excellent grip potential with both standard and inverted grips. Rugged, durable, great value and made in the USA, we know the MSI will quickly become a favorite of everyone in the knife community.

Intended Use: Tactical/Sporting

Type of production: Industrial
Country of Production: USA
Blade: Stainless steel M390MK 60-61HRC
Blade Finish: Black PVD
Handle: Injection molded polymer
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 129mm.
Total length: 226mm.
Thickness when closed: 15mm.
Weight: 128g.
Closure: Ram-Lok (Crossbar Lock / Axis Lock)
Clip: stainless steel, removable and reversible (tip up)
Packaging: cardboard box with Microtech USA logos
Notes: -

Released in 2023, the MSI (Microtech Standard Issue) is the first Microtech knife to feature the fantastic RAM-LOK technology. This sturdy reinterpretation of the sleeper lock features Microtech's distinctive stepped pattern, made famous by the Ultratech series trigger switches. The wide blade cutout provides ample room for reverse middle finger movement and standard slow-rotation thumb opening, with or without gloves. If neither is preferred, simply pull down on the RAM-LOK and the blade opens with a flick of the wrist. Injection-molded handles offer excellent grip potential with both standard and inverted grips. Rugged, durable, great value and made in the USA, we know the MSI will quickly become a favorite of everyone in the knife community.

Intended Use: Tactical/Sporting

Type of production: Industrial
Country of Production: USA
Blade: Stainless steel M390MK 60-61HRC
Blade Finish: Apocalyptic
Handle: Injection molded polymer
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 129mm.
Total length: 226mm.
Thickness when closed: 15mm.
Weight: 128g.
Closure: Ram-Lok (Crossbar Lock / Axis Lock)
Clip: stainless steel, removable and reversible (tip up)
Packaging: cardboard box with Microtech USA logos
Notes: -

Released in 2023, the MSI (Microtech Standard Issue) is the first Microtech knife to feature the fantastic RAM-LOK technology. This sturdy reinterpretation of the sleeper lock features Microtech's distinctive stepped pattern, made famous by the Ultratech series trigger switches. The wide blade cutout provides ample room for reverse middle finger movement and standard slow-rotation thumb opening, with or without gloves. If neither is preferred, simply pull down on the RAM-LOK and the blade opens with a flick of the wrist. Injection-molded handles offer excellent grip potential with both standard and inverted grips. Rugged, durable, great value and made in the USA, we know the MSI will quickly become a favorite of everyone in the knife community.

Intended Use: Tactical/Sporting

Type of production: Industrial
Country of Production: USA
Blade: Stainless steel M390MK 60-61HRC
Blade Finish: Apocalyptic
Handle: Injection molded polymer
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 129mm.
Total length: 226mm.
Thickness when closed: 15mm.
Weight: 128g.
Closure: Ram-Lok (Crossbar Lock / Axis Lock)
Clip: stainless steel, removable and reversible (tip up)
Packaging: cardboard box with Microtech USA logos
Notes: -

Designed by Microtech and manufactured by Rike Knife, the Socom Bravo Mini is a collaborative knife modeled after the classic Socom. This compact hand knife is an excellent heavy-duty tactical knife. It features a 6Al4V titanium handle reinforced with carbon fiber cheek pads. The lanyard hole and pocket clip allow for functional carry, and the ergonomics are among the best in the industry.

Intended Use: Tactical/Military

Production Type: Industrial
Country of Production: China
Blade: M390 stainless steel 60-61HRC
Blade Finish: Bead Blast
Handle: Titanium 6Al4V and Carbon Fiber
Blade Length: 87mm.
Blade thickness: 3.5mm.
Length closed: 110mm.
Total length: 196mm.
Thickness when closed: 14mm.
Weight: 95g.
Closure: Sub Frame Lock
Clip: titanium, removable (tip up)
Packaging: cardboard box with Microtech logos 
Notes: High-quality Asian production line that combines Microtech designs with the most modern materials

The Socom Elite sets the highest standards for tactical/utility cutlery. Since the inception of the original Socom in 1996, it has pioneered the entire line of Microtech folding knives. Over the years, many improvements have been made that have made the Socom more adaptable to different environments. You know you are buying the best tool on the market, regardless of which unique blade you choose: the clip point or the tanto. An integrated glass breaker at the base of the handle and a large pivot that allows easy opening with a glove add to its stature. The Socom's rugged reliability makes it the first choice of the special operations community.

Intended Use: Tactical/Military

Type of manufacture: midtech
Country of manufacture: USA
Blade: M390 stainless steel 60-61HRC
Blade Finish: Black PVD
Handle: Anodized aluminum with textured non-slip inserts
Blade length: 100mm.
Blade thickness: 5mm.
Length closed: 133mm.
Total length: 230mm.
Thickness when closed:13mm.
Weight: 149g.
Closure: Sub Liner Lock
Clip: stainless steel, removable (tip down)
Packaging: cardboard box with Microtech USA logos
Notes: tungsten carbide frangible integrated in the tang

Released in 2023, the Stitch RAM-LOK debuted with the MSI (Microtech Standard issue) as the first Microtech blade equipped with its fantastic RAM-LOK technology. This rugged take on the sleeper latch features Microtech's distinctive stepped pattern, made famous by the Ultratech series of trigger switches.

The Microtech Stitch is a beautiful tactical collaboration between Tony Marfione and Sebastijan Berenji, AKA Borka. It takes Sebastijan's fantastic Stitch design and combines it with Tony's superb opening mechanisms to create one of the most beautiful manufacturing collaborations ever.

Intended Use: Tactical/Military

Production Type: Midtech
Country of manufacture: USA
Blade: M390 stainless steel 60-61HRC
Blade Finish: Apocalyptic
Handle: Textured aluminum
Blade length: 92mm.
Blade thickness: 4mm.
Length closed: 129mm.
Total length: 217mm.
Thickness when closed:15mm.
Weight: 156g.
Closure: RAM-LOK (Crossbar Lock / Axis Lock)
Clip: stainless steel, removable and reversible (tip up)
Packaging: cardboard box with Microtech USA logos
Notes: Design by Anthony Marfione & Borka Blades

The Socom Elite sets the highest standards for tactical/utility cutlery. Since the inception of the original Socom in 1996, it has pioneered the entire line of Microtech folding knives. Over the years, many improvements have been made that have made the Socom more adaptable to different environments. You know you are buying the best tool on the market, regardless of which unique blade you choose: the clip point or the tanto. An integrated glass breaker at the base of the handle and a large pivot that allows easy opening with a glove add to its stature. The Socom's rugged reliability makes it the first choice of the special operations community.

Intended Use: Tactical/Military

Type of manufacture: midtech
Country of manufacture: USA
Blade: M390 stainless steel 60-61HRC
Blade Finish: Apocalyptic
Handle: Anodized aluminum with textured non-slip inserts
Blade length: 100mm.
Blade thickness: 5mm.
Length closed: 133mm.
Total length: 230mm.
Thickness when closed:13mm.
Weight: 149g.
Closure: Sub Liner Lock
Clip: stainless steel, removable(tip down)
Packaging: cardboard box with Microtech USA logos
Notes: tungsten carbide frangible integrated in the tang

Released in 2023, the Stitch RAM-LOK debuted with the MSI (Microtech Standard issue) as the first Microtech blade equipped with its fantastic RAM-LOK technology. This rugged take on the sleeper latch features Microtech's distinctive stepped pattern, made famous by the Ultratech series of trigger switches.

The Microtech Stitch is a beautiful tactical collaboration between Tony Marfione and Sebastijan Berenji, AKA Borka. It takes Sebastijan's fantastic Stitch design and combines it with Tony's superb opening mechanisms to create one of the most beautiful manufacturing collaborations ever.

Intended Use: Tactical/Military

Production Type: Midtech
Country of manufacture: USA
Blade: M390 stainless steel 60-61HRC
Blade Finish: Black PVD
Handle: Textured aluminum
Blade length: 92mm.
Blade thickness: 4mm.
Length closed: 129mm.
Total length: 217mm.
Thickness when closed:15mm.
Weight: 156g.
Closure: RAM-LOK (Crossbar Lock / Axis Lock)
Clip: stainless steel, removable and reversible (tip up)
Packaging: cardboard box with Microtech USA logos
Notes: Design by Anthony Marfione & Borka Blades

Designed by Microtech and manufactured by Rike Knife, the Socom Bravo Mini is a collaborative knife modeled after the classic Socom. This compact hand knife is an excellent heavy-duty tactical knife. It features a 6Al4V titanium handle reinforced with carbon fiber cheek pads. The lanyard hole and pocket clip allow for functional carry, and the ergonomics are among the best in the industry.

Intended Use: Tactical/Military

Production Type: Industrial
Country of Production: China
Blade: M390 stainless steel 60-61HRC
Blade Finish: Bead Blast
Handle: Titanium 6Al4V and Carbon Fiber
Blade Length: 87mm.
Blade thickness: 3.5mm.
Length closed: 110mm.
Total length: 196mm.
Thickness when closed: 14mm.
Weight: 95g.
Closure: Sub Frame Lock
Clip: titanium, removable (tip up)
Packaging: cardboard box with Microtech logos 
Notes: High-quality Asian production line that combines Microtech designs with the most modern materials

The Amphibian is a true Marfione classic dating back over 20 years. It comes from a bygone era when Microtech knives could be both automatic and manual...in one. Here we have the manual version that incorporates Tony's RAM-LOK design with a reversible pocket clip and two thumb studs for a fully ambidextrous knife that sacrifices nothing in any way. It features Bohler's proprietary M390MK steel, available only from Microtech Knives. The knife is similar to the MSI Microtech Standard in terms of size, but when it comes to style, there is no comparison. The Amphibian is one of the finest tactical knives ever, and we are happy to see it available again for the masses!

Intended Use: Tactical/Military

Type of manufacture: Midtech
Country of manufacture: USA
Blade: Stainless steel M390MK 60-61HRC
Blade Finish: Apocalyptic, Dual Tone
Handle: Aluminum Natural Clear
Blade Length: 105mm.
Blade thickness: 4mm.
Length closed: 140mm.
Total length: 235mm.
Thickness when closed: 17mm.
Weight: 180g.
Closure: Ram-Lok (Crossbar Lock / Axis Lock)
Clip: titanium machined from billet, removable and reversible
Packaging: cardboard box with Microtech USA logos
Notes: Design by Anthony Marfione

The Socom Elite sets the highest standards for tactical/utility cutlery. Since the inception of the original Socom in 1996, it has pioneered the entire line of Microtech folding knives. Over the years, many improvements have been made that have made the Socom more adaptable to different environments. You know you are buying the best tool on the market, regardless of which unique blade you choose: the clip point or the tanto. An integrated glass breaker at the base of the handle and a large pivot that allows easy opening with a glove add to its stature. The Socom's rugged reliability makes it the first choice of the special operations community.

Intended Use: Tactical/Military

Type of manufacture: midtech
Country of manufacture: USA
Blade: M390 stainless steel 60-61HRC
Blade Finish: Stonewashed
Handle: Anodized aluminum with textured non-slip inserts
Blade length: 100mm.
Blade thickness: 5mm.
Length closed: 133mm.
Total length: 230mm.
Thickness when closed:13mm.
Weight: 149g.
Closure: Sub Liner Lock
Clip: stainless steel, removable(tip down)
Packaging: cardboard box with Microtech USA logos
Notes: tungsten carbide frangible integrated in the tang

KNIFE RETIRED FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: In very good condition
* NO longer available on the market
* Sharpening: Factory
* Marks on blade: None
* Marks on handle: Very small marks
* Box: Present
* Sheath: -
* Manuals, Certificates and Guarantees: ER
* Checked and certified by our internal laboratory

Medium folding bag from the BD series. It is produced with an aluminum handle which enhances its characteristics of resistance and lightness, also thanks to the steel frame. The model maintains all the features of the BD2 updated with the new High Speed ​​Razor Opening system.

Intended use: Sports / EDC

Type of production: Industrial
Blade production: Italy
Blade: N690Co 58HRC stainless steel
Blade treatment: Satin
Handle: Anticorodal
Blade length: 95mm.
Blade thickness: 3mm.
Closed length: 128mm.
Total length: 224mm.
Closed thickness: 17mm.
Weight: 105g.
Closure: Liner Lock
Clip: removable in stainless steel
Packaging: cardboard box with Extrema Ratio logos
Note: -

The FULCRUM is a milestone among multi-role knives.

Deployed on a large scale in Afghanistan as standard equipment by components of the Italian "Nibbio" mission, it is part of an experimental individual equipment renewal project undertaken by the Alpine Troops Command. During the preparation for this important mission, Alpine Troops Command coordinated a team of companies in the production of a complete and renewed experimental individual equipment.

The FULCRUM is an extremely robust and versatile knife.
The blade can withstand breaking loads in excess of 150 kilograms, the tip is extremely strong and the tanto profile allows the knife to be worked on for a long time without affecting the sharpness of the last section.
The advanced center of gravity and weight of the blade make it suitable for heavy field work.

Intended use: tactical/military/multipurpose

Type of production: industrial
Country of manufacture: Italy
Blade: stainless steel N690Co
Blade finish: burnishing MIL-C-13924
Handle: forprene, removable
Blade length: 180mm.
Blade thickness: 6.3mm.
Total length: 213mm.
Weight: 325g.
Sheath: modular tactical, thigh or belt, made of Nylon and polymers
Packaging: cardboard box with Extrema Ratio logos
Notes: -

One of our earliest ZTs and still one of our most popular, now offered in a limited run with a CPM-MagnaCut steel blade.

The 0350 is a large and aggressive knife, yet compact and light enough to make it a practical and impressive EDC. The 0350 features ZT's assisted opening system: the blade opens quickly and easily, even with gloves on, thanks to the ambidextrous flipper. The blade is finished with a bold and distinctive tiger stripe pattern made with a tungsten DLC.

Intended Use: Tactical/Military

Type of production: Industrial
Country of manufacture: USA
Blade: CPM-MagnaCut steel
Blade Finish: Tungsten DLC Coating
Handle: G-10
Blade Length: 90mm.
Blade thickness: 3mm.
Length closed: 115mm.
Total length: 195mm.
Thickness when closed: 13mm.
Weight: 162g.
Closure: Liner Lock
Clip: Removable, Multiposition, stainless steel
Packaging: cardboard box with Zero Tolerance logos
Notes: Sprint Run edition with CPM-MagnaCut steel - Design by Mick Strider and Ken Onion - SpeedSafe opening system

ExtremaRatio - Dobermann IV Knife - S600 - Tactical Black represents the evolution of the first and most classic Extrema Ratio model, the K1 DOBERMANN. Since 1997, the DOBERMANN model has undergone significant aesthetic and design changes, adapting to the evolution of tastes and trends while remaining true to the original designs. Versatility of use and structural resistance are the main characteristics of DOBERMANN IV S600, making it ideal for hunting, survival, camping, and military use.

• • Type: Tactical / Collection
  • Blade Production: Italy
  • Blade: Stainless steel S600 64hrc
  • Blade Treatment: EXP DARK
  • Handle: Forprene
  • Blade Length: 185mm
  • Blade Thickness: 6.3mm
  • Total Length: 315mm
  • Weight: 360g
  • Sheath: Cordura with M.O.L.L.E attachments
  • Packaging: Cardboard box with Extrema Ratio logos

The blade of the DOBERMANN IV S600, made from Böhler S600 steel, offers excellent hardness, wear resistance, and toughness, thanks to the high content of molybdenum, tungsten, and vanadium. The addition of cobalt promotes the formation of small carbides, further improving wear resistance. With a hardness of 64 HRC, it ensures long-lasting edge retention. The “EXP DARK” teflon coating protects the steel from oxidation.

DOBERMANN IV S600 features a green forprene handle with a glass-breaking tang. It comes with a green cordura thigh sheath, adaptable for both left and right-handed users and compatible with the M.O.L.L.E system.

The Ant is the most compact among Extrema Ratio's folding knives. Despite its small size, this model features an extremely sturdy, durable, and reliable structure.

The handle is made of two different elements: the cheek piece crafted from anodized anticorodal aluminum and the hardened steel frame which also serves as the blade lock (Frame Lock System). This mechanism involves a part of the frame bending inward to firmly secure the blade in the open position, enhancing the user's safety during the knife's use.

The tang features a hole for the insertion of a lanyard, and on the right side of the handle, there is a steel clip that allows for concealed carry in the pocket.

The Ant Black version utilizes Böhler N690, hardened to 58 HRC for the best balance between edge retention and toughness, a type of steel used by Extrema Ratio for most of its knives.

The blade is sheep foot-shaped and has a small hole on the top part to facilitate opening. Its particular structure, with a straight edge, allows the user to comfortably rest their fingers on the back of the knife and use it with ease.

Type of production: industrial
Blade: in stainless steel N690 58 HRC
Blade production: Italy
Handle: anodized anticorodal aluminum and steel
Blade length: 70mm.
Blade thickness: 2.2mm.
Closed length: 55mm.
Total length: 127mm.
Balancing: -
Weight: 42g.
Closure: Frame Lock
Clip: removable stainless steel
Sheath: -
Notes:

Extrema Ratio Caimano Nero N.A. Ranger XXV Anniversarium Limited Edition is a limited series version of only 250 pieces that preserves intact all the features of the famous Caimano Nero N.A. model, a non-automatic version of the tactical knife that Extrema Ratio delivered to the G.O.I. (Gruppo Operativo Incursori) of the Italian Navy.

The Extrema Ratio Caimano Nero N.A. Ranger XXV Anniversarium Limited Edition comes in an IP67-certified watertight Polypropylene technical case, with pressurization valve, weatherproof, dustproof and shockproof, inside of which is also an Extrema Ratio 25th Anniversary commemorative coin and metal plaque with the progressive number of the limited series.

Intended Use: Tactical/Military

Type of manufacture: industrial
Blade: stainless steel N690Co 58HRC
Country of Production: Italy
Handle: Anticorodal
Blade length: 93mm.
Blade thickness: 4mm.
Length closed: 140mm.
Total length: 231mm.
Weight: 180g.
Closure: Liner Lock with additional safety catch, when knife is open
Clip: deep pocket, reversible and removable, stainless steel
Notes: Limited edition made of only 250 pieces accompanied by polypropylene case and commemorative coin

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: 2014 knife overall in near new, unused condition, some minor marks on metal parts given by age
* Commercially available Discontinued.
* Sharpening: Factory sharpened, never used for cutting.
* Marks on blade: No
* Marks on handle: Some discoloration of laser engravings given by age.
* Box: Present
* Scabbard: -
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory



Intended Use: Tactical / Multirole

Production type: Industrial
Country of Production: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade Finish: Desert Warfare
Handle: Anticorodal with stainless steel spacer
Blade length: 115mm.
Blade thickness: 6.3mm.
Total length: 260mm.
Weight: 245g.
Lock system: Back Lock with additional safety pin
Packaging: cardboard box with Extrema Ratio logos
Notes: Previously purchased discontinued specimen from a private collection. Full set, in near-new condition

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: Overall in good condition.
* Commercially Available Available.
* Sharpening: Factory.
* Marks on blade: A couple of light marks on burnishing.
* Marks on handle: Slight signs of wear on hardware and clip.
* Box: Present, but not in perfect condition
* Scabbard: -
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory


Intended Use: Tactical/Sporting

Production Type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924
Handle: Anticorodal (aluminum)
Blade length: 68mm.
Blade thickness: 4mm.
Length closed: 110mm.
Total length: 181mm.
Thickness when closed: 15mm.
Weight: 139g.
Closure: Liner Lock, with additional safety catch
Clip: stainless steel removable and reversible
Packaging: cardboard box with Extrema Ratio logos

Thanks to its structure, RAO C is a tool that despite its small size, manages to guarantee the same qualities of robustness and reliability as its big brother while offering better portability and manageability.

The locking mechanism on opening is particularly strong as it is assisted by a safety system that turns it into a true fixed blade. The primary safety on the blade is activated by raising and lowering the locking pin. To provide the user with maximum safety in use, a practical and quick secondary safety has been applied, which can be activated simply by moving the locking pin horizontally.

For the purpose of lightening the steel frames, a template was laser-cut from the profile of the RAO C, which was then used to make a gadget that is delivered with the knife.


Intended use: hiking/tactical

Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924
Handle: anticorodal anodized with hard oxidation
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 132mm.
Total length: 225mm.
Weight: 239g.
Closure: modified front lock, with push-button aditional safety.
Notes: keychain gadget, with miniature profile of the knife

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

Ferrum E is a simple, essential and functional EDC (Every Day Carry) folding knife. Equipped with a drop blade, it has a slim and compact shape, the two anodised anticorodal aluminium sheaths make up a light, slender and at the same time very durable handle. It can be housed in a breast pocket, in small torch holsters or inside a single M.O.L.E. loop.

Equipped with a flipper-assisted opening system, the blade rotates on ball bearings that allow for smooth and uncertainty-free blade movement. This mechanism allows the operator to open the blade quickly and easily, even with one hand. The locking system adopted is the tried and tested liner lock.

The reversible clip is positioned at the rear.

Intended use: Tactical / EDC

Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade finish: Satin
Handle: Rough Anticorodal
Blade length: 75mm.
Blade thickness: 3mm.
Length closed: 90mm.
Total length: 186mm.
Weight: 87g.
Closure: Liner Lock
Clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

The 117 Brahma Pro knife is a versatile tool designed for hunting and outdoor activities. It is often referred to as the 'mini 119 Special' because it shares the classic style of Buck's first fixed knives. The knife offers two main cutting options: the clip-shaped blade tip for precise and detailed work, and the middle part of the blade for sturdier and tougher tasks.

A notable feature of the 117 Brahma Pro is its traditional guard and pommel. These elements help ensure greater control and stability during use. In addition, the knife comes with a black genuine leather sheath that features a belt loop for convenient and accessible carrying.


Intended use: Hunting / Light Utility

Production type: Industrial
Country of manufacture: USA
Blade: BOS hardened CPM-S35VN stainless steel
Blade finish: Satin finish
Handle: Micarta, with aluminium pommel and guard
Blade length: 114mm.
Blade thickness: 3.3mm.
Total length: 222mm.
Balance: on the guard branch
Weight: 139g.
Sheath: Black leather
Packaging: Cardboard box with Buck logos
Notes: -

What is the best tool for splitting wood? For camping, we think the best tool is the Froe 108 Compadre. The froe is designed for clearing, heavy cutting, splitting and beating. Full tang 5160 spring steel runs the entire length of the froe, which measures 42.5 cm, giving it excellent shock-absorption capacity and increasable strength. The 24.1 cm long cutting edge is perfect for splitting, but also lends itself to detailed work. The Cerakote Cobalt coating offers increased durability and corrosion resistance. The ergonomic handle is made of natural canvas Micarta, which ensures a superior grip even in wet conditions. The Froe includes a genuine black leather sheath, made in the USA, with a stainless steel attachment ring to keep the froe at your side or secure in your backpack. The Froe 108 Compadre is the perfect tool for your camping and general outdoor needs. Made in the USA.


Intended Use: Machete / Heavy Duty

Production type: Industrial
Country of manufacture: USA
Blade: Full tang, 5160 steel at 57/58HRC hardened by BOS
Blade finish: Cobalt Cerakote
Handle: Natural Canvas Micarta
Blade length: 241mm.
Blade thickness: 5.8mm.
Total length: 425mm.
Balance: Advanced
Weight: 683g.
Sheath: Black leather
Packaging: Cardboard box with Buck logos
Notes: -

Extrema Ratio S-THIL STONE WASHED is a tactical backup knife with monolithic construction machined from a single piece of 5 mm thick BOHLER N690 steel, developed in collaboration with Thilo designer Arnd Schiller.

The blade, a spear point type, is hardened to 58 HRC in order to achieve the best balance of edge retention and strength, features a false counterbore at the top that enhances penetration and point work characteristics, and has a full-length groove (fuller) that flows elegantly from the blade to the handle. The blade is milled integrally to the knife to enhance its compactness and lightness, maintaining a minimal thickness while still having a profile reminiscent of the classic Extrema Ratio handle.

That profile goes to form two small guards and a comfortable thumb rest to prevent the hand from slipping towards the blade. On the end are a skull crusher with a diamond-shaped tip and a slot that allows a wrist strap to be attached to the knife or the handle to be fitted with paracord coiling.

The molded nylon sheath is designed to be extremely flat with very small side dimensions to make it as compact as possible. The design of the knife makes it ambidextrous, allowing it to be inserted into the sheath with the blade cutting edge to the right or left. The double retention system integral to the sheath consists of four pressure elements that work only two at a time, depending on right/left-handed use, while the nylon textile part has a button that allows the knife to be secured to the sheath.

The end of the sheath has a hole to expel liquids or debris inside. The ability to attach belt clip, ulticlip, malice clip makes it extremely versatile. You can also attach the sheath to the M.O.L.L.E. system by braiding the paracord.


Intended Use: Tactical/Multi-role

Production type: Industrial
Country of manufacture: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade treatment: Stonewashed
Handle: Steel N690Co 58HRC
Blade length: 119mm.
Blade thickness: 5mm.
Total length: 230mm.
Weight: 123g.
Sheath: Nylon
Packaging: cardboard box with Extrema Ratio logos
Notes: -

Extrema Ratio S-THIL Black Warfare, a special version of the S-THIL model, is a backup knife with a monolithic structure machined from a single piece of 5 mm thick BOHLER N690 steel, developed in collaboration with the designer Thilo Arnd Schiller. The spear point type blade is hardened to 58 HRC in order to obtain the best balance between edge retention and strength, has a false edge in the upper part which enhances the characteristics of penetration and tip work, and is equipped with a Full length furrow flowing elegantly from blade to grip.

The blade is milled integrally with the knife to enhance its compactness and lightness, maintaining a minimum thickness even with a profile that recalls the classic Extrema Ratio handle. This profile forms two small guards and a comfortable thumb rest in order to prevent the hand from slipping towards the blade. On the end there is a skull crusher with a diamond-shaped tip and a slot that allows you to attach a wrist strap to the knife or to equip the handle with paracord winding.

The special Black Warfare version uses the innovative and original Geotech Camo pattern, created by laser engraving. The molded nylon sheath has been designed to be extremely flat and with very small lateral dimensions, in order to make it as compact as possible. The design of the knife makes it ambidextrous, allowing it to be inserted into the sheath with the cutting edge of the blade to the right or left. The double retention system integral with the sheath is made up of four pressure elements that work only two at a time, depending on right/left use, while in the nylon textile part there is a button that allows you to secure the knife to the sheath . The end of the sheath has a hole that allows you to expel liquids or residues inside. The possibility of applying belt clips, ulticlips, malice clips makes it extremely versatile. It is also possible to hook the sheath to the M.O.L.L.E. system. weaving the paracord lanyard.

The S-thil Black Warfare is supplied in an IP67 certified watertight Polypropylene technical case, with pressurization valve, resistant to atmospheric agents, dust and shocks. Inside there are also the Nylon sheath, the double ULTICLIP and the double grain sharpening plate (ceramic abrasive and synthetic diamond).

Intended use: Tactical / Multirole

Type of production: Industrial
Country of production: Italy
Blade: N690Co stainless steel hardened to 58HRC
Blade treatment: BURNISHING MIL-C-13924 GEOTECH CAMO
Handle: N690 steel
Blade length: 119mm.
Blade thickness: 5mm.
Total length: 230mm.
Weight: 123g.
Sheath: in Kydex, with double multiposition ULTICLIP attachment clip
Packaging: Polypropylene case with S-Thil / Extrema Ratio logos
Notes: exclusive briefcase to celebrate the company's 25th anniversary

Intended Use: Sporting/Tactical

Production type: Industrial
Country of Production: USA
Blade: Stainless steel CPM-20CV
Blade treatment: Blackwash
Handle: Carbon fiber and Titanium Blackwash
Blade length: 83mm.
Blade thickness: 3mm.
Length closed: 112mm.
Total length: 191mm.
Weight: 65g.
Closure: Framelock
Clip: Removable, stainless steel
Notes: KVT opening on ball bearings - Carson Flipper opening system - Design by Sinkevich - Limited Edition "Factory Special Series"

Selvans Expeditions, as well as the Selvans model from which it derives, was born from the collaboration between Extrema Ratio and the Master instructor F.I.S.S. (Federazione Italiana Survival Sportivo e Sperimentale) Daniele Dal Canto. This tool is the result of the modification of the ONTOS, military survival knife, realized in order to accentuate and maximize the performance of the knife.

Selvans Expeditions uses Böhler N690 steel heat treated to 58 HRC with MIL-C-13924 burnishing and stone washed surface treatment (Dark Stone finish). The handle has been lengthened and the blade weighted to promote effective cutting strokes. It comes with a desert Cordura sheath with MOLLE system, equipped with a mini pouch containing paracord with flammable filament that can be used in case of emergency and/or critical weather conditions and a Firesteel for lighting fires.

The survival kit (not included and purchasable separately) has been optimized and includes whistle, chainsaw, drinking pads, compass, brass wire, flintlock, flashlight, paracord 2,5 mt. and sharpener.

Intended use: Survival / Heavy Utility

Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924 with Dark Stone finish
Handle: Forprene
Blade length: 160mm.
Blade thickness: 6.3mm.
Total length: 312mm.
Balance: Advanced
Weight: 430g.
Sheath: Cordura, M.O.L.L.E. compatible.
Package: 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).

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

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

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

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

DMP is a multi-role knife characterized by a strong versatility of use thanks to the small dimensions. The blade, drop point shape with reinforced tip, is particularly useful for heavy duty use. The full flat rounding gives excellent cutting characteristics.

The sheath is minimalist, stripped of most of the fabric adopting a retention system of 2nd level, going to recall the style of the model to which it is inspired. The main shell is made by injection in shockproof nylon. The secondary retention system is reversible for the ambidextrous portability of the knife.

Intended Use: Tactical / Multi-role

Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Treatment: Stone Washed
Handle: Forprene
Blade length: 152mm.
Blade thickness: 6.3mm.
Total length: 282mm.
Weight: 283g.
Scabbard: Nylon
Packaging: Cardboard box with Extrema Ratio logos.
Notes: -

Japanese steel merges with Italian excellence

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

Intended Use: Neck Knife / Collector's Knife

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

As in the ancient swords of the Japanese Samurai.

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

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

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

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

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

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

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

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 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 easy 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 external steel and by the laminated structure.
Selvan model: for this First Production Run a run of 5 pieces numbered from 1 to 5 was created.

The Selvans was born from the collaboration between Extrema Ratio and FISSS (Italian Federation of Sports and Experimental Survival). The project consists of modifying the Ontos, a military survival knife, to accentuate and maximize the performance of the knife as a hiking tool.

The handle has been lengthened and the blade weighted to favor the effectiveness of the cutting strokes and to make more use of the inertia of the stroke.

Intended use: Heavy Utility
Type of production: Industrial
Production Lama: Italy
Blade: integral, laminated Japanese steel (San Mai) with V-Toku2 (carbonaceous) cutting edge at 62 / 63HRC and SUS410 (stainless steel) external scales
Blade treatment: Testudo
Handle: Forprene
Blade length: 15.5mm.
Blade thickness: 6.3mm.
Total length: 310mm.
Thick when closed: -
Balancing: advanced
Weight: 424g.
Sheath: nylon, MOLLE compatible
Packaging: Cardboard box with Extrema Ratio logos
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.

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

Characteristics of San Mai steel: These are different types of metals bonded together to create a composite that encloses and intensifies the strengths of the metals individually taken:
- Longer 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 on 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 facing (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 with a damask pattern at the end of the processing are aesthetically elegant, refined and highly appreciated by collectors all over the world.

For more information: collinisteel

Project born with the brand of Collini KNIVES.IT cutlery

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

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

The Task series has been designed for all everyday cutting jobs.

The partially symmetrical blade with flat edge on both sides. The hollow part of the blade after the guard, which separates the sharp part from the handle, has been made to house the index finger during use, creating a grip point near the sharp part for better control while using the knife.

This feature, together with the support grip on the back of the knife, allows a better grip while avoiding the slipping of the hand on the blade. This allows you to carry out most cutting jobs with higher pressure.

Intended use: Tactical

Type of production: Industrial
Country of production: Italy
Blade: N690Co stainless steel
Blade finish: Desert Warfare (Burnished with laser engraving)
Handle: Forprene
Blade length: 160mm.
Blade thickness: 6.3mm.
Total length: 290mm.
Weight: 275g.
Sheath: Cordura
Packaging: Cardboard box with Extrema Ratio logos
Note: -

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

The Extreme Ratio E.C.M. (Einsatzkommando Cobra Messer) is a fixed blade multipurpose knife, designed for operational uses for the famous Einsatzkommando "Cobra" special unit of the Austrian police, whose logo is laser engraved on the heel of the blade. The Extreme Ratio E.C.M. it combines the characteristics of a practical tool and those of a reliable weapon, in a compact configuration with a total weight of 240g.

The blade is made of Böhler N690 steel, hardened to 58 HRC and is 116 mm long, 5 mm thick and equipped with a flat edge. The profile of the blade is of the modified spear point type, with a false counter-thread ¾ in length on the back and a lower guard to protect the hand during use.

Both the guard and the knob have holes to facilitate the attachment of the knife to various tools or for the passage of laces. The blade has a Carbon-based DLC (Diamond-Like Carbon) surface coating making it hyper-resistant to abrasion and chemical aggression.

Given the heavy use of the tool, for the handle, instead of the usual Forprene, the more performing high-strength G10 is used.

It is fixed to the FULL TANG profile by two through screws and maintains all the known ergonomic characteristics of the Extrema Ratio handles. Being a knife designed for professional use, great importance was given to ease of port, accessibility and rapid extraction.

The polymer sheath is versatile and can be carried on a service belt or mounted on M.O.L.L.E. of tactical vests, backpacks or other equipment.

Intended use: Tactical / Military

Type of production: Industrial
Country of production: Italy
Blade: Bohler N690Co stainless steel at 58HRC
Blade treatment: DLC (Diamond Like Coating)
Handle: G10
Blade length: 106mm.
Blade thickness: 5mm.
Total length: 233mm.
Weight: 240g.
Sheath: Synthetic, polymer, MOLLE compatible
Packaging: Cardboard box with Extrema Ratio logos

Intended use: Tactical / Hard Utility / Survival

Type of production: Industrial
Country of production: USA
Blade: full tang, in 5160 carbon steel
Blade finish: Cerakote
Handle: Micarta
Blade length: 254mm.
Total length: 406mm.
Balancing: Advanced
Weight: 655g.
Sheath: Nylon and Polyester
Packaging: Cardboard box with Buck logos
Note: -

The Giant Mamba has a "tanto" blade in 6.3 mm thick Böhler N690 steel with a hardness of 58 HRC, flat edge and full length lightening.

The Forprene handle with locking by threaded tang makes the knife solid and well balanced. The MOLLE compatible sheath is made of shockproof nylon with a conical opening for rapid insertion and extraction and a system that avoids shaking noises, it is equipped with a two-button safety flap, a thigh with anti-rotation rubber reinforcement and a reversible ambidextrous safety : simply pressing the trigger unlocks the blade.

 
Intended use: Tactical / Multirole

Type of production: Industrial
Country of production: Italy
Blade: in N690Co 58HRC stainless steel
Blade treatment: Satin
Handle: Forprene
Blade length: 163mm.
Blade thickness: 6.3mm.
Total length: 293mm.
Weight: 289g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -

Compact version of the CONTACT, the CONTACT C has a spearhead blade, in Böhler N690 steel with a hardness of 58 HRC, flat edge, lower guard branch and full-length lightening release.

The Forprene handle with locking by threaded tang makes the knife solid and well balanced.

The MOLLE compatible sheath is made of shockproof nylon with a system that avoids shaking noises, is equipped with a two-button safety flap, a thigh with anti-rotation rubber reinforcement and a reversible ambidextrous 2nd level retention system: the simple pressure on the trigger unlocks the blade.

Intended use: Tactical / Backup

Type of production: Industrial
Country of production: Italy
Blade: in N690Co 58HRC stainless steel
Blade treatment: Mil-C-13924 burnishing
Handle: Forprene
Blade length: 128mm.
Blade thickness: 6.3mm.
Total length: 258mm.
Weight: 273g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -

On December 19, 1941, in Eluet El Asel, about 400 men from the 1st Royal Carabinieri Battalion Paratrooper faced the assault of 4 battalions of Indian troops of the British Army. Jumping from their trenches by launching improvised devices, the "Desert Lions", as Radio London called them, made the defensive line impenetrable by allowing thousands of Italian-German troops to withdraw safely. This was the first page in the long history of Italian paratroopers.

The Tuscania Paratrooper Regiment asked that the Extra Ratio T911 be specifically made as a commemorative knife for its 80th anniversary.

The T911 is a medium-sized folding light and designed for professional use by military operators. It is equipped with a modified spear point blade, flat edge, in Bohler N690 cobalt steel heat-treated to a hardness of 58 HRC, for the best compromise between strength, ease of regrinding and thread hold. The blade is 76 mm long, 4 mm thick, has a stone washed finish and rotates around an adjustable pin which allows to obtain the best fluidity in opening. A brace allows you to lock the pin in the best position.

The handle is in Anticorodal aluminum alloy with high strength black anodized finish and is milled to facilitate the transition from "reverse grip" handle to saber handle.

The blade is opened by means of a pin operated with the thumb. The knife uses a liner lock type blade lock and a safe ensures maximum hold even during heavy use. The safety lever is colored red for better visibility and engages in an advanced position for more instinctive use.

In the handle are integrated a seat belt cutter with easily available and replaceable cutter-type blade, a tungsten glass breaker, a stainless steel knot loosener and a screwdriver for adjusting the pointing optics, in AISI 420 steel. The clip , reversible and fixed at the end of the handle, allows a very deep port in the pocket, for less visibility.

The knife can be dismantled for cleaning and maintenance. With a total length of 194 mm and a weight of 145g, the T911 is easy to wear both in uniform and in civilian clothes.

Intended use: Tactical / Emergency

Type of production: Industrial
Lama production: Italy
Blade: N690Co 58HRC stainless steel
Blade treatment: Stonewashed
Handle: Anticorodal
Blade length: 76mm.
Blade thickness: 4mm.
Length closed: 118mm.
Total length: 194mm.
Thick when closed: 24mm.
Weight: 145g.
Closing: Liner Lock
Clip: Stainless steel
Packaging: black cardboard box with Extrema Ratio logos
Notes: belt cutter, glass breaker, screwdriver for optics, stainless steel knot loosers

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.

Intended use: Sports / Collection

Type of production: Industrial
Country of production: USA
Blade: CPM-20CV stainless steel
Blade treatment: Black DLC
Handle: Black DLC Titanium
Blade length: 95mm.
Blade thickness: 4mm.
Length closed: 127mm.
Total length: 222mm.
Thick when closed: 14mm
Weight: 141g.
Closure: Framelock
Clip: Removable, reversible, in titanium
Packaging: cardboard box with Zero Tolerance logos
Notes: "Sprint Run" Limited Edition available while stocks last - Design by Gustavo T. Cecchini by GTC Knives - KVT opening on ball bearings - SLT Spring Loaded Tab opening system

RESOLZA, a term of ancient origin, is today one of the most famous traditional knives of our country. The name suggests the razor by chance.

It was born in Sardinia centuries ago and has accompanied its inhabitants until today in the daily work of a peasant and pastoral life, following them even when its men were called to war. The chronicles of the Sassari Brigade during the First World War cite this knife among its soldiers' equipment.

We wanted to make a tribute by revisiting it according to our canons, without wanting to hurt any of the prestigious Sardinian artisans who still today pass on the tradition and wisdom of their ancestors. The dimensions and proportions are the original ones of a 10 cm blade, but the materials and technologies are those of our production. The handle revised in our style, the blade most faithful to tradition. In addition to the original, it has the blade lock open.

Intended use: sports

Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Handle: Anticorodal
Blade length: 100mm.
Blade thickness: 3mm.
Total length: 220mm.
Weight: 65g.
Closure: Liner Lock
Clip: -
Sheath: -
Notes: blade with MIL-C 13924 burnishing

Helmsman is a knife designed and perfected in every single detail for its primary use in a nautical environment and represents the evolution of the BF2 V model presented on the Amerigo Vespucci School Ship in 2013 and dedicated to the most beautiful ship in the world.

The blade, which reaches a length of 87 mm, has a serration at the base while the tip has a flat grinding that allows symmetrical cutting work with wider support while the stone washed finishing process preserves more from corrosion in a marine environment.

Intended use: Sports / Tactical / For Sailing Boat

Type of production: industrial
Blade: N690Co 58HRC stainless steel with Stone Washed finish
Country of production: Italy
Handle: Anticorodal with stainless steel reinforcements
Blade length: 87mm.
Blade thickness: 3mm.
Length closed: 124mm.
Total length: 210mm.
Weight: 143g.
Closure: Liner Lock
Clip: reversible and removable in stainless steel
Notes: ankle band / loose knots - small shackle - Tactical quick release hanger - Safety catch with open knife - Safety ankle fastener / Knot release

Intended use: Tactical / Multirole

Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Stone Washed
Handle: Forprene
Blade length: 162mm.
Blade thickness: 6.3mm.
Total length: 293mm.
Weight: 300g.
Sheath: in Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -

Extrema Ratio developed the first knife of a new production line, called CONTACT.

It has a blade with a lance-shaped profile, a flat grinding and a diamond-shaped geometry. It has got a lower guard branch to protect itself from incidental cuts, upper jumping to improve grip, concave fuller along the length of the blade and a generous thickness blade (6.30mm) the now famous Requiem, revisited in proportions and in some technical features. The first of a new line of multipurpose knives.

The blade is made in Böhler N690 steel with a hardness of 58 HRC and a chemical burnishing coating for the Black version. All other colors in production have got a blade with Stone Washed finishing. The handle is still in forprene. It is more assembled by the side screws but thanks to the shank in truncated cone-shaped stainless steel that is screwed to the bottom and goes to fit inside a special seat, which makes it solid. In this way the knife is well balanced. The sheath is minimalist; most of the fabric has been cut off; it has got a 2nd level retention system, remembering the style of the model it was inspired by.

The main shell is injection-molded in shockproof nylon. The secondary retention system is reversible for ambidextrous users. The blade is guided through the conception of the blade. To extract the blade, to pressure the trigger will be sufficient, thus releasing the safety that holds securely in the sheath. In the horizontal slits of the sheath of a system, which fixes the blade to avoid shaking noises when it is stored inside. The back side of the nylon sheath is M.O.L.L.E. compatible.

The textile part is reduced to its minimum and has got the classic two-button safety strap with a belt loop Extrema Ratio aims to reduce the size of the knife, but not saving on the structural strength and safety accessories.

so be used as glass breakers

Intended use: Emergency and survival multi-purpose knife

Type of production: Industrial
Country of production: Italy
Blade: N690Co stainless steel
Finish: Testudo burnishing
Handle: anticorodal anodized aluminum
Blade length: 85mm.
Blade thickness: 2.5mm.
Total length: 210mm.
Weight: 152g.
Sheath: -
Packaging: Cardboard box with Extrema Ratio logos and manufacturer's certificates
Notes: emergency blade with snap opening (length 8 cm) - window breaker - 2013 model now out of production

Born from the revisitation of the 39-09 model, the Nimbus was developed and chosen by the 183rd "Nembo" Paratrooper Regiment as a commemorative knife of the events of Case Grizzano which on 19 April 1945 saw the Nembo paratroopers engaged against the paratroopers of a German division . The clashes raged for 12 hours and were often resolved by hand-to-hand combat with the white weapon. A few days after the end of the Second World War one third of the battalion's men remained on the field, but their sacrifice led to the conquest of the battle. The knife in addition to wanting to commemorate an important event of our Armed Forces is the result of a development that has been carefully studied also in the technical aspects, so as to make it suitable for a concrete operational use.

Particular attention has been paid to taking care of the dimensions, the shape and the search for solutions such as the kydex sheath, which is designed to make the knife an instrument capable of adapting to the most complex requirements of the port.

The light and compact blade meets the demands of a modern tactical knife today.

Intended use: Collection

Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Satin finish
Handle: Wood
Blade length: 141mm.
Blade thickness: 5mm.
Total length: 263mm.
Weight: 203g.
Sheath: in Leather
Packaging: display case
Notes: -

Intended use: Sports / Tactical

Type of production: Industrial
Country of production: U.S.A.
Blade: CPM-20CV stainless steel
Blade treatment: coated & machine satin finish
Handle: Black carbon fiber with aluminum spacers
Blade length: 95mm.
Blade thickness: 4mm.
Length closed: 126mm.
Total length: 221mm.
Thick when closed: -
Weight: 122g.
Closure: Sub Framelock in hardened steel
Clip: Removable, in titanium
Packaging: cardboard box with Zero Tolerance logos
Notes: Design by Sinkevich & Rexford

use: Sportive / Tactical / Collection

Type of production: Industrial
Country of production: U.S.A.
Blade: S35VN stainless steel
Blade treatment: Black Tungsten DLC
Handle: Titanium with purble anodizing
Blade length: 86mm.
Blade thickness: 3mm.
Closed length: 108mm.
Total length: 191mm.
Thick when closed: 11.5mm.
Weight: 95g.
Opening: Carson Flipper system
Washers: in steel, with KVT ball bearings
Closure: FrameLock
Clip: stainless steel, removable and reversible
Packaging: Cardboard box with Zero Tolerance logos
Notes: Design by R.J. Martin & Matt Martin - Sprint Run Edition 2019 available while stocks last

Dedicated to those who are more at ease with a knife with a more classic profile, the VENOM is characterized by a wide, flat main grind.

Less suitable for combat, it is best expressed in field and precision work (thanks to the lower angle of sharpening).

It is a multirole of great utility in hunting and outdoor sports. The profile and the general outline of the blade are inspired by the Italian and Austro / Hungarian battle blades of the first half of the 20th century.

 
Intended use: Tactical / Sports

Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Stonewashed
Handle: Forprene
Blade length: 180mm.
Blade thickness: 6.3mm.
Total length: 310mm.
Balancing: on the guard branch
Weight: 300g.
Sheath: thigh, in nylon, with rigid polymer insert
Packaging: Cardboard box with Extrema Ratio logos
Note: -

Intended use: collection / gentleman / sportsman

Type of production: Artisan
Lama Production: Visalia, California, USA
Blade: Stainless steel M390 - Stonewashed
Handle: Acid Rain Frosty titanium with green anodizations, screws, spacer and green anodized clips
Blade length: 65mm.
Blade thickness: 3.5mm.
Closed length: 88mm.
Total length: 152mm.
Thick when closed: 10.5mm.
Weight: 76g.
Opening: front flipper system on movement with ball bearings
Closure: FrameLock
Clip: titanium acid rain frosty green anodized
Packaging: hard-copy textile case with zip closure and Olamic Cutlery logos - certificate of guarantee and authenticity with serial number
Notes: each Olamic knife is unique and made entirely by hand in different combinations of materials, finishes, colors and details - each knife is numbered

The Wayfarer 247 was initially released in May 2016 and since then Olamic has continuously refined the design and the model, enriching it with features, options and customizations to choose from to create millions of possible combinations on the model. In May 2018 the range is extended by offering 4 different blade shapes to choose from: drop point, harpoon, sheepscliffe and much more.

Intended use: collection / sports

Type of production: Artisan
Lama Production: Visalia, California, USA
Blade: M390 stainless steel - Acidwash
Handle: carved titanium with gunkote boneyard finish, screws and gunkote boneyard spacer
Blade length: 90mm.
Blade thickness: 3.5mm.
Length closed: 123mm.
Total length: 207mm.
Thick when closed: 12.5mm.
Weight: 136g.
Opening: carson flipper system on movement with ball bearings
Closure: FrameLock
Clip: titanium boneyard gunkote
Packaging: hard-copy textile case with zip closure and Olamic Cutlery logos - certificate of guarantee and authenticity with serial number
Notes: each Olamic knife is unique and made entirely by hand in different combinations of materials, finishes, colors and details - each knife is numbered

The Wayfarer 247 was initially released in May 2016 and since then Olamic has continuously refined the design and the model, enriching it with features, options and customizations to choose from to create millions of possible combinations on the model. In May 2018 the range is extended by offering 4 different blade shapes to choose from: drop point, harpoon, sheepscliffe and much more.

Intended use: collection / sports

Type of production: Artisan
Lama Production: Visalia, California, USA
Blade: M390 stainless steel - Acidwash
Handle: kinetic rainforest titanium with purple anodizing, screws and kinetic rainforest spacer
Blade length: 90mm.
Blade thickness: 3.5mm.
Length closed: 123mm.
Total length: 207mm.
Thick when closed: 12.5mm.
Weight: 136g.
Opening: carson flipper system on movement with ball bearings
Closure: FrameLock
Clip: titanium kinetic rainforest
Packaging: hard-copy textile case with zip closure and Olamic Cutlery logos - certificate of guarantee and authenticity with serial number
Notes: each Olamic knife is unique and made entirely by hand in different combinations of materials, finishes, colors and details - each knife is numbered

The Wayfarer 247 was initially released in May 2016 and since then Olamic has continuously refined the design and the model, enriching it with features, options and customizations to choose from to create millions of possible combinations on the model. In May 2018 the range is extended by offering 4 different blade shapes to choose from: drop point, harpoon, sheepscliffe and much more.

Intended use: collection / sports

Type of production: Artisan
Lama Production: Visalia, California, USA
Blade: M390 stainless steel - Acidwash
Handle: dark blast titanium with blue entropic interior design, blue anodized screws, blue entropic spacer
Blade length: 90mm.
Blade thickness: 3.5mm.
Length closed: 123mm.
Total length: 207mm.
Thick when closed: 12.5mm.
Weight: 136g.
Opening: carson flipper system on movement with ball bearings
Closure: FrameLock
Clip: titanium
Packaging: hard-copy textile case with zip closure and Olamic Cutlery logos - certificate of guarantee and authenticity with serial number
Notes: each Olamic knife is unique and made entirely by hand in different combinations of materials, finishes, colors and details - each knife is numbered

The Wayfarer 247 was initially released in May 2016 and since then Olamic has continuously refined the design and the model, enriching it with features, options and customizations to choose from to create millions of possible combinations on the model. In May 2018 the range is extended by offering 4 different blade shapes to choose from: drop point, harpoon, sheepscliffe and much more.

Intended use: collection / sports

Type of production: Artisan
Lama Production: Visalia, California, USA
Blade: Stainless steel M390 - 2 tone stonewashed
Handle: dark blast titanium with purple anodized
Blade length: 90mm.
Blade thickness: 3.5mm.
Length closed: 123mm.
Total length: 207mm.
Thick when closed: 12.5mm.
Weight: 136g.
Opening: carson flipper system on movement with ball bearings
Closure: FrameLock
Clip: titanium
Packaging: hard-copy textile case with zip closure and Olamic Cutlery logos - certificate of guarantee and authenticity with serial number
Notes: each Olamic knife is unique and made entirely by hand in different combinations of materials, finishes, colors and details - each knife is numbered

Intended use: Tactical / Military

Type of production: Industrial
Lama production: USA
Blade: CPM-20CV stainless steel
Blade treatment: Black DLC
Handle: Titanium with Black DLC and G-10 treatment
Blade length: 90mm.
Blade thickness: 4mm.
Length closed: 113mm.
Total length: 206mm.
Thick when closed: 12mm.
Weight: 160g.
Closure: Frame Lock
Clip: Removable, Multiposition, made of stainless steel
Packaging: cardboard box with Zero Tolerance logos
Notes: Design by Rick Hinderer - Ball bearing opening KVT Ball Bearing System - Opening by Carson Flipper system