Coltelli e Spade

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously purchased and used.
* Condition: Overall in good condition.
* Commercially available Not available (limited run sprint run in K390 steel).
* Sharpening: Re-sharpened
* Marks on blade: Small marks, especially near the tip, left side
* Marks on handle: Signs of wear on the titanium clip, a major scratch on the right side of the handle, above the frame
* Box: Present and original, in cardboard.
* Scabbard: -
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory


Intended Use: Sporting/Collection

Type of Production: Industrial
Country of Production: Italy
Blade: In cold work tool steel Bohler K390 hardened to 64/65HRC
Blade finish: Microbead blasted and matted
Handle: Titanium
Blade length: 74mm.
Blade thickness: 3.5mm.
Total length: 175mm.
Weight: 74g.
Closure: Titanium Frame Lock with steel clapper
Clip: Titanium 6Al4V
Packaging: Cardboard box with LionSteel logos
Notes: Opening on IKBS ball bearings with carson flipper system - DIffers from the standard model in both the steel used, the upper blade profiling, the finish of the blade, the packaging, and the lack of possibility to customize the opening system by removing the flipper - previously purchased knife from a private collection

Extremely limited edition Platinum Label series folding knife with Mokume damascus blade and heads produced in only 20 examples each with a different coloration of the wood briar. Each specimen is therefore unique and differs from the previous one.

Intended use: collection

Type of production: industrial cutting - craftsmanship, assembly and finishing
Country of production: Seki - Japan
Blade: made of Mokume stainless steel with VG-10 cutting edge, forged with rainbow damascus rolling, achieved through layers of stainless steel, copper and brass and hammered through Tsuchime technique
Handle: made of Mokume stainless damask steel and wood briar
Blade length: 80mm.
Blade thickness: 3mm.
Length closed: 110mm.
Total length: 195mm.
Thickness when closed: 14mm.
Weight: 208g.
Closure: Liner Lock
Clip: handcrafted, removable and reversible, hammered stainless steel
Packaging: wooden box with Mcusta logos
Notes: Special and Limited Edition made in only 20 pieces for the Blade Show in Atlanta 2022

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.