Coltelleria Collini projects

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.

With this exclusive edition of Coltelleria Collini in collaboration with Fox, it was decided to combine a multi-award-winning model like the Suru with a Japanese powder steel (sintered) and laminate (SanMai) by Takefu Steel.

For this project we have chosen to use Super Gold2 (SPG2) steel at 62 / 63HRC for the cutting edge of the blade in order to guarantee exceptional cutting performance and durability of the sharpening, while simultaneously guaranteeing a remarkable resilience and resistance to oxidation. given by the lamination process of the blade.

Intended use: Sports / Collection

Type of production: Industrial
Country of production: Italy
Blade: in Japanese laminated stainless steel (San Mai) with sintered cutting edge in SPG2 at 62/63HRC
Blade treatment: Satin finish
Handle: Stonewashed aluminum
Blade length: 60mm.
Blade thickness: 4mm.
Length closed: 88m.
Total length: 148mm.
Thick when closed: 11mm
Weight: 84g.
Closure: Frame Lock with stainless steel door
Clip: flush, removable, stainless steel
Packaging: Cardboard box with Fox Knives logos
Notes: Opening via Carson Flipper system - Movement on ball bearings - Design by Jesper Voxnaes - Aluminum version of the SURU Carbon Fiber model, winner of the 2018 Blade Show as "Overall Knife of the Year" - Exclusive version of Collini Cutlery, Sprint Run, with Takefu Steel SPG2 Laminate Japanese stainless steel.

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 Samurai swords 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.

- Longer tool life
thanks to the use of high quality steel with high carbon content (VG10, CoS, Shiro) or sintered (SPG2), in the heart of the sheet (Core Steel), the blade once hardened, achieves hardness and cutting performance decidedly 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 lateral coating (Stainless Steel).

- Better corrosion resistance
the steel used for the outer 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 even 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 optimal performance of the blade, cryogenic treatment is recommended.

- Improvement of the aesthetic rendering
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.

This knife is a Collini Cutlery exclusive edition, the one and only Karambit blade ever made by Extrema Ratio and you will not be able to find it in other stores - This is a very small worldwide limited edition of 50 serialized pieces.

Blade: 58HRC N690Co Testudo Stainless Steel
Country of production: Italy
Handles: Black satin anticorodal
Blade Lenght: 90mm.
Blade Thinckness: 4mm.
Total Lenght: 205mm.
Hole Diameter: 22mm
Weight: 152g.
Sheath: Kydex with Tek-Lok
Notes: Worldwide limited edition, only 50pcs each serialized

This knife is a Collini Cutlery exclusive edition, the one and only Karambit blade ever made by Extrema Ratio and you will not be able to find it in other stores - This is a very small worldwide limited edition of 50 serialized pieces.

Blade: 58HRC N690Co Testudo Stainless Steel
Country of production: Italy
Handles: Black satin anticorodal
Blade Lenght: 90mm.
Blade Thinckness: 4mm.
Total Lenght: 205mm.
Hole Diameter: 22mm
Weight: 152g.
Sheath: Kydex with Tek-Lok
Notes: Worldwide limited edition, only 50pcs each serialized