Passion for knives

T4000 S Ranger Limited Edition is a limited series version of only 100 pieces based on the T4000 model, a reworking of the Japanese Wakizashi short sword that the Samurai carried at all times in contact with the body.

It is a timeless tactical tool that follows no fashion but faithfully adheres to the Extrema Ratio philosophy aimed at fulfilling all functional requirements.

This model continues Extrema Ratio's purest Tanto series designed especially for lovers of the Japanese blade profile, who do not want to give up typical tactical accessories such as textile sheath and special polymer handle.

The blade, made of Böhler N690 steel hardened to 58 HRC and burnished to MIL - C- 13924, features Geotech Camo customization, Extrema Ratio's innovative and original camouflage pattern made by laser engraving.

The grip, in HCS coloring, is made of Forprene, an elastomer that is part of the "NATO standard" due to its exceptional resistance to extreme conditions.

The black-colored Cordura sheath is and equipped with MOLLE system that allows its carrying on tactical vests and general belts and guarantees the safe carrying of the razor-sharp blade by protecting it from shocks that could reduce its efficiency.

The T4000 S Ranger Limited Edition comes in an IP67-certified watertight Polypropylene technical case with pressurization valve that is weather, dust and shock resistant. Also inside is a double-grit sharpening plate (ceramic abrasive and synthetic diamond) and a metal plaque with the numbering of the limited series of 100.


Intended Use: Tactical/Collection

Type of production: Industrial
Country of Production: Italy
Blade: Bohler N690Co stainless steel at 58HRC
Blade Finish: Burnishing MIL-C-13924 with Geotech pattern
Handle: Forprene
Blade length: 174mm.
Blade thickness: 4mm.
Total length: 304mm.
Weight: 264g.
Sheath: Nylon
Packaging: Polymer case, diamond and ceramic sharpener, Limited run of only 100 pieces

Cold Steel - Kobun much - 17T - knife

Intended use: Sport

Type of production: Industrial
Production Blade: Taiwan
Blade: Stainless steel AUS 8
Treatment Lama: -
Handle: Kray-Ex ™
Blade length: 136mm.
Blade thickness: 3mm.
Length closed: -
Total length: 250mm.
Thick when closed: -
Balance: -
Weight: 125g.
Closing: -
Clip: -
Sheath: Secure-Ex ® Sheath
Packaging: Cardboard box with logos Cold Steel
Notes: -

Super strong, super shiny, super light! By the will of the Nordic gods, Dirk Hofmeister of Midgards Messer has created a powerful masterpiece of great lightness and thrilling performance: the Boker Plus Superlight Tanto.

Made entirely of high-strength steel, this fixed-blade knife brings pure excitement with every cut. The solid tanto blade, crafted from D2 steel with a legendary stonewashed finish, effortlessly balances precision and cutting ability across the broad spectrum from EDC to outdoor use. 

The asymmetrical openings in the skeletonized handle reduce weight, enhance appearance and tactile feel, while the typical blade thickness and anti-slip inserts at critical points provide an exceptional grip and a high level of work safety.

Equipped with a hole for lanyard attachment, a perfectly fitting Kydex sheath, and a belt clip.

Intended Use: Utility

Production Type: Industrial
Country of Manufacture: China
Blade: full tang in D2 steel
Blade Finish: Stonewashed
Handle: -
Blade Length: 73mm.
Blade Thickness: 5.7mm.
Total Length: 169mm.
Weight: 99g.
Sheath: Kydex, with multi-position clip attachment
Packaging: cardboard box with Boker Plus logos
Notes: Design by Midgards Messer

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: Very Good, never used, with some marks given by time and insertion in the sheath
* Commercially available: 2002 model, no longer available
* Sharpening: factory sharpened
* Marks on blade: A few small marks given by time and insertion in scabbard
* Marks on handle: A few small marks given by time.
* Packaging: /
* Scabbard: Leather, handcrafted, in good condition, with a few small marks from time
* Manuals, Certificates and Warranties: Certificate of Authenticity. 
* Checked and Certified by our in-house laboratory.

Knife handcrafted by Master C.IC. (Italian Knifemakers Guild) Alfredo Sinibaldi. A futuristic integral made of D2 bead blast with strongly asymmetrical sharpening on both sides and special leather sheath with fastening by snap fastened directly to the base from the handle.

Intended use: tactical/collectible

Type of production: handcrafted
Country of manufacture: Italy
Blade: D2 steel hardened to 62HRC
Blade finish: bead blast
Handle: /
Blade length: 110mm.
Blade thickness: 6mm.
Total length: 229mm.
Weight: 122g.
Sheath: handcrafted, leather, hand-stitched
Packaging: /
Notes: previously purchased knife, supplied with certificate with date and signature

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

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Early 2000s knife, previously purchased.
* Condition: Overall in good condition.
* Commercially available Discontinued
* Sharpening: Factory.
* Marks on blade: Small abrasions given by being placed in Kydex sheath.
* Marks on handle: None
* Box: -
* Scabbard: Present
* Manuals, Certificates and Warranties: - -
* Checked and Certified by our in-house laboratory

Intended Use: Tactical

Production type: MidTech
Country of Production: USA
Blade: full tang stainless steel CPM-S30V
Finish: Tiger Stripe
Handle: Paracord
Blade length: 100mm.
Blade thickness: 4.5mm.
Total length: 195mm.
Weight: 125g.
Sheath: thermoformed kydex, with Tek-Lok multi-position attachment
Notes: previously purchased knife, from private collection

KNIFE NOS FULL SET, NEW FROM STOCK
* Type: 1995 NOS knife - New Old Stock - New from stock
* Condition: Like new
* Commercially available Out of production
* Sharpening: Factory.
* Marks on blade: Given by time
* Marks on handle: Given by time.
* Box: Present, original, in very good condition
* Scabbard: Present, original, in very good condition, with small marks given by time
* Manuals, Certificates and Warranties: - -
* Checked and Certified by our in-house laboratory

Intended use: collection / tactical / sporting

Type of production: Industrial
Country of Production: USA
Blade: Carbon V steel
Blade treatment: varnishing
Handle: Kraton
Blade length: 179mm.
Blade thickness: 5mm.
Total length: 298mm.
Balance: advanced
Weight: 265g.
Sheath: Cordura
Packaging: cardboard box with Cold Steel logos and "Made in USA" logos.
Notes: knife from 1995 NOS - New Old Stock - New from stock

WAKI XXV ANNIVERSARIUM LIMITED EDITION is a limited series version of only 150 pieces that keeps all the features of the famous Waki model intact.

This product is an elaboration of the Japanese Wakizashi sword, a typical blade 30 to 60 centimeters long, which the Samurai always carried in contact with the body, where the Katana was carried exclusively in battle.

The blade has the classic Japanese Tanto profile and is made of Böhler N690 steel with heat treatments that raise its hardness to 58 HRC for the best combination of edge hold and strength. The blade, with flat rounding, features a precious satin finish.

The handle, in black coloring, is made of Forprene while The black-colored Cordura sheath is equipped with a MOLLE system that ensures safe carrying of the razor-sharp blade by protecting it from shocks that could reduce its efficiency.

WAKI XXV ANNIVERSARIUM LIMITED EDITION comes in an IP67-certified watertight Polypropylene technical case with pressurization valve that is weather, dust and shock resistant. Also inside is a metal plaque with the numbering of the limited series of 150 and a commemorative coin of the twenty-fifth Extrema Ratio anniversary.

Intended Use: Collection / Tactical / Machete

Production type: Industrial
Country of manufacture: Italy
Blade: N690Co stainless steel at 58HRC
Blade Treatment: Satin finish
Handle: Forprene
Blade Length: 297mm.
Blade thickness: 6.5mm. tapering to 4mm from the handle.
Total length: 456mm.
Weight: 384g.
Sheath: cordura, compatible with M.O.L.L.E. systems.
Packaging: polypropylene case with numbered metal plaque and commemorative coin with Extrema Ratio logos
Notes: Limited and numbered edition made in only 150 pieces

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: in excellent condition
* Commercially available: No
* Sharpening: Original
* Marks on blade: NO
* Signs on handle: NO
* Packaging: NO
* Sheath: in plastic material
* Manuals, Certificates and Guarantees: NO
* Checked and Certified by our internal laboratory

Blade: AUS-8 high-carbon 57/58HRC stainless steel
Handle: in cotton with stingray skin insert
Blade length: 140mm.
Blade thickness: 5mm.
Total length: 290mm.
Weight: 322g.
Sheath: plastic material
Note:

The Wander Tactical Lynx knife is an excellent option for anyone looking for a robust and reliable knife. The blade is made of D2 steel, which offers good resistance to wear and corrosion. The length of the blade is approximately 10cm and has a clip point shape, making it ideal for many outdoor activities.

The handle of the knife is made of micarta, a resistant and non-slip material that offers excellent grip even in humid or sweaty conditions. The length of the handle is approximately 12cm which gives a good balance to the knife, making it easy to handle and control.

The Lynx knife comes with a Kydex sheath, which protects and keeps it safe during transport. In addition, the cover can be easily attached to a belt or trousers thanks to its quick fastening system.

Overall, the Wander Tactical Lynx knife is an excellent choice for anyone looking for a reliable and durable knife for outdoor activities. With its sturdy blade, non-slip handle and Kydex sheath, the Lynx knife is a very attractive option for hikers, campers and outdoor enthusiasts.

Intended use: utility / bushcraft

Type of Production: Artisanal
Country of Production: Italy
Blade: D2 steel at 59/60HRC
Blade Finish: Raw Finish
Handle: Micarta
Blade length: 105mm.
Blade thickness: 5mm.
Total length: 235mm.
Balance: backwards
Weight: 260g.
Sheath: kydex
Packaging: -
Notes: Each knife is unique and handcrafted

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously Purchased - knife dating back to the late 80s
* Condition: excellent condition
* Commercially available: Discontinued since 2018
* Sharpening: Factory
* Marks on blade: No
* Signs on the handle: very small marks
* Box: packaging
* Sheath: in wood
* Manuals, Certificates and Warranties: -
* Checked and Certified by our internal laboratory

Intended use: Collection / Vintage

Type of production: handcrafted
Country of production: USA
Blade: hand forged Damascus steel
Blade treatment: -
Handle: in wood
Blade length: 110mm.
Blade thickness: 5.5mm.
Total length: 230mm.
Weight: 245g.
Scabbard: wooden scabbard
Notes: limited edition 1 of 200

KNIFE WITHDRAWN FROM PRIVATE COLLECTION

The first and original Tanto "Made in Japan", here in a 1980's version with a San Mai steel blade, progenitor of the modern generation continued with the Master Tanto, Magnum Tanto and Recon Tanto.

* Type: Previously Purchased
* Condition: very good, never used, some light surface marks (visible against the light)
* Commercially available Out of production
* Sharpening: Original wire
* Marks on blade: yes, superficial
* Marks on handle: no
* Box: no
* Scabbard: Present - Original, in good general condition, some marks present
* Manuals, Certificates and Warranties: no
* Checked and certified by our internal laboratory

Intended use: Collection

Type of production: Industrial
Country of manufacture: Japan
Blade: San Mai steel - Made in Japan
Blade treatment: satin finish
Handle: Kraton with brass guard and pommel
Blade length: 145m
Blade thickness: 4.7mm.
Total length: 285mm.
Balance: recessed
Weight: 268g.
Sheath: Black leather, branded "Japan".
Packaging: without original box
Notes: Knife from a private collection, first series, produced in the 1980s and out of production since the 1990s, overall in very good condition.

Type of production: Artisan
Production Lama: Italy
Blade: in D2 steel at 59 / 60HRC
Blade treatment: Camo
Handle: Micarta
Blade length: 200mm.
Blade thickness: 5mm.
Total length: 347mm.
Balancing: backward
Weight: 510g.
Sheath: in Kydex, thermoformed, with tek-lok type attachment
Packaging: without packaging, supplied with its own certificate of authenticity
Notes: Dimorphodon with clip point tip and Rambo knife style blade - Limited Edition - Each knife is unique and handcrafted

Knife from a private collection - The first and original Tanto "Made in Japan", here in the second series from 1986, progenitor of the modern generation continued with the Master Tanto, Magnum Tanto and Recon Tanto - Overall in very good condition, with no particular scratches, marks or abrasions on blade and handle; a few small marks of time on scabbard - Product still has original factory sharpening, although it would need a brightening-no signs of wear anyway - Supplied with its own original leather scabbard marked "Japan", but lacking box and manuals - Checked and certified by our in-house laboratory.

Intended use: collection

Type of manufacture: Industrial
Country of manufacture: Japan
Blade: made of "Cold Steel's 400 Series Stainless" steel (presumably 420 stainless)
Blade treatment: satin finish
Handle: made of Kraton with brass guard and pommel
Blade length: 145m.
Blade thickness: 5mm.
Total length: 285mm.
Balance: backward
Weight: 259g.
Sheath: black leather, marked "Japan"
Packaging: without original box
Notes: knife from private collection, first series, produced in 1988 and discontinued in 1990, overall in very good condition.

Knife from a private collection - The first and original Magnum Tanto "Made in Japan" from 1988, progenitor of the modern generation continued with the Magnum Tanto II in 1990 - Overall in very good condition, with no particular scratches, marks or abrasions on blade, handle and sheath - Product does not appear to have the original factory sharpening, but still has no signs of wear - Supplied with its own original leather sheath marked "Japan", but lacking box and manuals - Checked and certified by our in-house laboratory.

Intended use: collection

Type of manufacture: Industrial
Country of manufacture: Japan
Blade: stainless steel AUS-8A
Blade treatment: satin finish
Handle: kraton
Blade length: 230mm.
Blade thickness: 5mm.
Total length: 370mm.
Balance: advanced
Weight: 330g.
Sheath: black leather, marked "Japan"
Packaging: without original box
Notes: knife from private collection, first series, produced in 1988 and discontinued in 1990, overall in very good condition.

Knife from a private collection - Very rare and highly sought after discontinued model dating back to 2000 - Peculiar tanto blade with chisel sharpening - This is a scaled down version of Timberline's Specwar model made in collaboration with Emerson - Like new, never used, perfect in every detail, with warranty and immaculate box - Checked and certified by our in-house laboratory.

Intended Use: Tactical / Collection

Type of manufacture: Industrial
Country of Production: USA
Blade: 440C stainless steel with chisel sharpening
Blade finish: matte microbead blasting
Handle: Nylon and Fiberglass
Blade length: 95mm.
Blade thickness: 2.5mm.
Total length: 220mm.
Weight: 105g.
Sheath: Kydex
Notes: 2000 knife from a private collection - Like new

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).

Knife from a private collection - The original Recon Tanto "Made in USA" of the '90s, progenitor of the current generation - Absolutely like new, never taken out of the box, still with the original factory grease on the blade, sheath without signs of use and knife insertion - Complete, with original box and Cold Steel warranty - Checked and certified by our internal laboratory.

Intended use: collection / tactical / sporting

Production type: Industrial
Country of Production: USA
Blade: Carbon V steel
Blade treatment: varnishing
Handle: Kraton
Blade length: 179mm.
Blade thickness: 5mm.
Total length: 298mm.
Balancing: advanced
Weight: 265g.
Scabbard: Simil-leather
Package: Cardboard box with Cold Steel and "Made in USA" logos
Notes: Knife from a private collection - Made in the late 90's (presumably 1997/1998) - Absolutely like new

Intended Use: utility / bushcraft

Type of Production: Artisan
Country of Production: Italy
Blade: D2 steel at 59/60HRC
Blade Finish: Raw Finish
Handle: Micarta
Blade Length: 105mm.
Blade thickness: 5mm.
Total length: 235mm.
Balance: backward
Weight: 260g.
Sheath: kydex
Package: -
Notes: Each knife is unique and handcrafted

Destinazione d'uso: Utility

Tipo di produzione: Industriale
Paese di produzione: Cina
Lama: ful tang in acciaio D2
Finitura lama: Black PVD
Manicatura: G10
Lunghezza lama: 80mm.
Spessore lama: 5.7mm.
Lunghezza totale: 166mm.
Peso: 157g.
Fodero: in Kydex, con aggancio multiposizione
Confezione: scatola di cartone con loghi Boker Plus
Note: -

Intended Use: Sporting

Production type: Industrial
Country of Production: China
Blade: Stainless steel 8Cr13MoV
Blade finish: Satin finish
Handle: Kray-Ex™ with stainless steel guard
Blade length: 89mm.
Blade thickness: 3mm.
Total length: 171mm.
Weight: 93.5g.
Scabbard: Secure-Ex® in thermoplastic material
Packaging: Cardboard box with Cold Steel logos
Note: the package does not include the sheath's docking system or attachment system.

Intended Use: Sporting

Production type: Industrial
Country of Production: China
Blade: Stainless steel 8Cr13MoV
Blade finish: Satin finish
Handle: Kray-Ex™
Blade length: 82mm.
Blade thickness: 3mm.
Total length: 168mm.
Weight: 93.5g.
Scabbard: Secure-Ex® thermoplastic material
Packaging: Cardboard box with Cold Steel logos
Note: the package does not include the sheath's docking system or attachment system.

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

Type of production: Artisan
Lama production: Italy
Blade: in D2 steel at 59 / 60HRC
Blade treatment: Row Finish
Handle: Micarta
Blade length: 105mm.
Blade thickness: 5mm.
Total length: 235mm.
Balancing: backward
Weight: 260g.
Sheath: kydex
Packaging: -
Notes: Each knife is unique and handcrafted; there may be slight differences in finishes, colors and materials compared to the product photographed.

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.

Intended use: Tactical / Military

Type of production: Industrial
Country of production: USA
Blade: full tang in 5160 carbon steel
Blade treatment: powder coating
Handle: micarta
Blade length: 175mm.
Blade thickness: 6.3mm.
Total length: 305mm.
Balancing: slightly advanced
Weight: 522g.
Sheath: nylon, M.O.L.L.E compatible, rigid polypropylene insert
Packaging: Cardboard box with OKC logos
Note: -

Intended use: tactical / sports

Type of production: Industrial
Country of production: Taiwan
Blade: SK-5 carbon steel
Blade treatment: Black Tuff-Ex painting
Handle: Kray-Ex (Kraton)
Blade length: 175mm.
Blade thickness: 5mm.
Total length: 300mm.
Balancing: on the guard branch
Weight: 238g.
Sheath: Secure-Ex in ABS
Packaging: cardboard box with Cold Steel logos

A compact and compact multi-role knife with ABS fast release sheath with two multiposition clips and tight enough to be secured inside the passers-through of the M.O.L.L.E. - Available in four color variants: Black, Desert, Ranger Green and HCS (Hybrid Coyote Sage)

Intended use: tactical / multi role

Type of production: industrial
Country of production: Italy
Blade: N690Co stainless steel hardened to 58HRC
Blade Treatment: Satin
Handle: Forprene
Blade Length: 116mm.
Blade thickness: 4mm.
Total Length: 237mm.
Weight: 85g.
Sheath: in ABS with two multiposition clips, designed for type M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos
Notes: -

Purpose of use: Collection / Sportsman / Machete

Type of production: Artisan
Blade Production: Japan
Blade: Hand forged, rolled damper with Hitachi Shirogami cutting edge at 64HRC
Blade Treatment: -
Manicure: Paracord
Blade Length: 125mm.
Blade thickness: 5mm.
Closed length: -
Total Length: 245mm.
Closure thickness: -
Balance: -
Weight: 205g.
Closure: -
Clip: -
Sheath: IN LEATHER
Packing: Carton box
Notes: Hand made entirely by Takeshi Saji

Intended use: Hiking / Backup

Type of production: Industrial
Country of production: Italy
Blade: Stainless Steel Bohler N690Co at 58HRC
Blade Treatment: Satin
Handle: Forprene
Blade Length: 118mm.
Blade thickness: 5mm.
Total Length: 232mm.
Weight: 145g.
Sheath: Kydex, compatible with M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos

Intended use: Hiking / Backup

Type of production: Industrial
Country of production: Italy
Blade: Stainless Steel Bohler N690Co at 58HRC
Blade Treatment: Satin
Handle: Forprene
Blade Length: 103mm.
Blade thickness: 5mm.
Overall length: 217mm.
Weight: 141g.
Sheath: In Nylon, compatible with M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos

Intended use: Hiking / Backup

Type of production: Industrial
Country of production: Italy
Blade: Stainless Steel Bohler N690Co at 58HRC
Blade Treatment: Brush MIL-C-13924
Handle: Forprene
Blade Length: 118mm.
Blade thickness: 5mm.
Total Length: 232mm.
Weight: 145g.
Sheath: In Kydex, compatible with M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos

Intended use: Hiking / Backup

Type of production: Industrial
Country of production: Italy
Blade: Stainless Steel Bohler N690Co at 58HRC
Blade Treatment: Brush MIL-C-13924
Handle: Forprene
Blade Length: 103mm.
Blade thickness: 5mm.
Overall length: 217mm.
Weight: 141g.
Sheath: In Nylon, compatible with M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos

Purpose: Collection / Sportsman

Type of production: Industrial
Country of Origin: Taiwan
Blade: 440C steel
Blade treatment: satin finish
Handle: rayskin and cotton
Blade Length: 235mm.
Blade thickness: 6.5mm.
Total Length: 375mm.
Weight: 527g.
Sheath: in leather
Packing: gift box with guarantee certificate and microfibre cloth for cleaning
Notes: Limited edition number edition in 1999 - Design by Wally Hayes

Intended use: Utility
Type of production: Industrial
Production Country: Italy
Blade: Stainless steel N690Co 58 / 60HRC
Blade treatment: HNCF
Handle: Forprene
Blade length: 240mm.
Blade thickness: 6mm.
Overall length: 370mm.
Balancing: Advanced, to 5cm from the guard branch
Weight: 440g.
Sheath: Nylon, with M.O.L.L.E. attacks
Packaging: cardboard box with Fox logos

The Lynx is designed to satisfy all users in the 'scope of the Hunt, the Bushcraft and Survival. Thickness and dimensions have been studied to facilitate precision work and at the same time be reliable even for heavy work. Handy and compact, it is the perfect companion for the outdoors.

Type of production: Artisan
Lama production: Italy
Blade: in steel D2 at 59 / 60HRC
Lama treatment: Black Blood
Handle: Micarta
Blade length: 105mm.
Blade thickness: 6.5mm.
Total length: 230mm.
Balancing: set back
Weight: 288g.
Sheath: Kydex, thermoformed, with Tek-Lok type connection
Package: -
Notes: Each knife is unique and handcrafted; there may be slight differences in finishes, colors and materials compared to the photographed product.

With the T4000 C continues the purest series so Extrema Ratio, for lovers of the profile of Japanese blades that do not want to give up the accessories typically tactical as sheath and handle.

Intended use: Tactical / Backup

Type of production: Industrial
Production Country: Italy
Blade: stainless steel Bohler N690Co to 58HRC
Treatment blade: Browning MIL-C-13924
Handle: Forprene
Blade length: 174mm.
Blade thickness: 4mm.
Length closed: -
Overall length: 304mm.
Thick when closed: -
Balancing: -
Weight: 264g.
Closing: -
Clip: -
Sheath: Nylon
Packaging: Cardboard box with logos Extrema Ratio
Notes: -

Intended Use: Sport / Tactician

Type of production: Industrial
Production Lama: China
Blade: 440A stainless steel
Treatment Blade: Black Stone Washed
Handle: G10
Blade length: 131mm.
Blade thickness: 4mm.
Length closed: -
Overall length: 250mm.
Thick when closed: -
Balancing: -
Weight: 198g.
Closing: -
Clip: -
Sheath: Kydex, free from damage belt
Packaging: Cardboard box with logos Boker Magnum
Notes: -

Intended Use: Sport / Tactician

Type of production: Industrial
Production Lama: China
Blade: 440A stainless steel
Treatment Blade: Black Stone Washed
Handle: G10
Blade length: 106mm.
Blade thickness: 4.8mm.
Length closed: -
Overall length: 227mm.
Thick when closed: -
Balancing: -
Weight: 265g.
Closing: -
Clip: -
Sheath: Kydex with Tek-Lok attachment type
Packaging: Cardboard box with logos Boker Magnum
Notes: -