Coltelleria ed illuminazione

Knife withdrawn from a private collection - In like new condition - Never regrind - Checked and certified by our in-house Coltelleria Collini laboratory.

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

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

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

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

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

Intended use: collection / CQD

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

2020 limited edition knife, designed by Lucas Burnley.

Intended use: Collection

Type of production: Industrial
Country of production: Taiwan
Blade: M390 steel
Blade treatment: Satin
Handle: titanium with carbon fiber insert
Blade length: 100mm.
Blade thickness: 3.9mm.
Closed length: 130mm.
Total length: 230mm.
Weight: 173 g.
Clip: titanium
Closure: Frame Lock
Packaging: cardboard box with Boker Plus logos, Nylon case with zip
Note: Burnley design

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.

Intended use: Sports

Type of production: Industrial
Country of production: Taiwan
Blade: in steel D2
Blade treatment: Satin
Handle: G10 and stainless steel
Blade length: 85mm.
Blade thickness: 3.9mm.
Closed length: 117mm.
Total length: 202mm.
Weight: 159g.
Clip: stainless steel, with blue anodizing
Closure: Frame Lock
Packaging: cardboard box with Boker Plus logos, Nylon case with zip
Notes: Design by Jesper Voxnaes