Approved - knives withdrawn from private collections, checked, overhauled and certified by Coltelleria Collini

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased
* Condition: Like new, never used and never removed from its original packaging
* Available on the market: Out of production
* Sharpness: Factory sharp
* Marks on blade: None
* Marks on handle: None
* Box: Present
* Sheath: Present
* Manuals, Certificates, and Warranties: Present
* Checked and Certified by our in-house laboratory

Intended use: Tactical/Sport

Type of production: Industrial
Country of production: Italy
Blade: N690Co stainless steel
Finish: Testudo burnishing
Handle: Forprene
Blade length: 128mm.
Blade thickness: 6.3mm.
Total length: 258mm.
Balance: rearward
Weight: 253g.
Sheath: Gen.1, ABS, with Tek-Lok multi-position attachment
Packaging: cardboard box with Extrema Ratio logos
Notes: from a private collection - 2007 model now out of production (replaced by the T4000 series)

KNIFE FROM A PRIVATE COLLECTION
* Origin: Retrieved from a private collection, previously purchased
* Condition: Like new
* Available on the market: Discontinued
* Sharpening: Original
* Blade marks: None
* Handle marks: None
* Box: Included
* Sheath: Included
* Manuals, Certificates and Warranty: Included
* Inspected and Certified by our in-house lab

Japanese steel meets Italian excellence

For this 2020 collaboration, exclusively for Coltelleria Collini, we decided to offer a series of best sellers produced by Extrema Ratio. These knives are made using the renowned San Mai steel produced by Japan’s Takefu Steel. Specifically, we used carbon-rich V-Toku2 at 62/63HRC for the central core and stainless SUS410 for the outer layers, resulting in superior cutting performance, penetration, edge retention, ease of sharpening, and at the same time excellent corrosion resistance and increased resilience due to the laminated structure.

Model Col Moschin Compact: this First Production Run was limited to 15 numbered units, from 1 to 15.

The lethal efficiency of the COL MOSCHIN knife, now in compact version. Comes with a rigid belt sheath and BELT-CLIP. The sheath can be mounted horizontally, vertically, or at a 45° angle.

Usage: tactical, sports, hiking, collecting

Blade: full tang, laminated Japanese steel (San Mai) with cutting edge in V-Toku2 (carbon steel) at 62/63HRC and outer cheeks in SUS410 (stainless)
Handle: Forprene
Blade length: 110mm
Blade thickness: 6.5mm
Overall length: 212mm
Balance: 0.5cm behind the guard
Weight: 209g
Sheath: ABS with multi-position Tek-Lok attachment
Notes: Numbered edition - cardboard box with Extrema Ratio logos and certificate - as the cutting edge is carbon steel, it is recommended to lightly oil the blade to maintain its condition.

As in ancient Japanese Samurai swords.

The laminated steel – imported into Italy by Collini Steel directly from Japan’s Takefu Steel – is based on the age-old Japanese sword-making tradition. As early as the 1100s, Japanese blacksmiths were combining different metals to craft Katana swords with extraordinary cutting power, resistance, and flexibility. This revolutionary technique allowed Samurai swords to survive through centuries and become among the most fascinating human-made artifacts. Applied to modern metallurgy, this tradition now yields advanced steels already used in knife-making by brands like Fallkniven, Cold Steel, Mcusta, Kai, Sog, Zwilling, Rockstead, etc.

San Mai Steel Features: A combination of different metals bonded together to create a composite with amplified properties:

- Greater edge retention
Thanks to high-carbon premium steels (VG10, CoS, Shiro) or powder steels (SPG2) in the core, once hardened, the blade achieves cutting performance far superior to traditional steels.

- Higher resilience
Based on Japanese sword construction, the multi-layer steel is highly resistant to breaking due to the toughness of the core and flexibility of the stainless cladding.

- Improved corrosion resistance
The outer stainless layers ensure high corrosion resistance. Takefu’s multi-metal bonding also enhances galvanic protection of the edge.

- Easy processing post heat-treatment
Despite being hardened, the outer layers retain softness, allowing easy drilling, grinding, or welding. Cryogenic treatment is recommended for optimal performance.

- Enhanced aesthetics
Multi-layer or Damascus-patterned knives are elegant, refined, and highly valued by collectors worldwide.

For more information: collinisteel

Includes cover and article published in the October/November 2016 issue of "Coltelli" magazine.

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased and used.
* Condition: Overall in good condition, knife only, no packaging and paper warranties.
* Commercially available: Discontinued
* Sharpening: Professionally re-sharpened.
* Marks on blade: Normal signs of wear and tear.
* Marks on handle: Several small abrasions on handle and opening pins, hardware slightly discolored
* Box: Not present
* Scabbard: -
* Manuals, Certificates and Warranties: Not present
* Checked and Certified by our in-house laboratory.

The Extrema Ratio Nemesis knife is an excellence in the world of tactical tools, designed to deliver superior performance in high-intensity situations. With a strong and versatile blade made of high-quality steel, the Nemesis is ideal for professional use and for those seeking a durable and precise knife. Its ergonomic design and secure grip make it a perfect ally in any environment, from combat to survival, with a focus on durability and handling.

Intended use: tactical/military/backup

Blade: made of N690Co 58HRC stainless steel with burnishing
Handle: made of anticorodal, with 4.5mm thickness
Blade length: 115mm.
Blade thickness: 6mm.
Length closed: 148mm.
Total length: 260mm.
Weight: 235g.
Closure: Back Lock with additional pin safety with both closed and open blade
Clip: burnished stainless steel, removable and reversible
Notes: previously purchased knife from a private collection

• Origin: Withdrawn from a private owner, previously purchased
• Condition: Overall in excellent condition
• Availability: Discontinued
• Sharpening: Original sharpening
• Blade marks: /
• Handle marks: Minor marks
• Box: /
• Sheath: /
• Manuals, Certificates, and Warranties: /
• Inspected and Certified: By our internal laboratory

The Extrema Ratio M.P.C. (Multi Purpose Compact) is an Italian-made folding knife designed to offer the durability of a fixed-blade knife in a compact and versatile format. Made with high-quality materials and precision techniques, it is ideal for tactical uses and field operations.

• Intended use: Tactical / Multi-role
• Production type: Industrial
• Country of origin: Italy
• Blade: Böhler N690 steel (58HRC)
• Blade finish: Testudo (brunished)
• Handle: Black anodized Anticorodal aluminum alloy
• Blade length: 113 mm
• Blade thickness: 6 mm
• Closed length: 149 mm
• Total length: 260 mm
• Closed thickness: 20 mm
• Weight: 240 g
• Locking system: Back lock with additional safety system
• Clip: Removable and reversible, brunished stainless steel
• Packaging: -
• Notes: The blade features partial serration for efficient cutting of cables and high-resistance fabrics.

The M.P.C. was developed to replace or complement a fixed-blade knife, combining the portability of a folder with the strength required for heavy-duty tasks. Its thick blade and robust locking system make it one of the most reliable tools in its category.

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

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 - year of production 2004 - 1st series Shrapnel with double guard branch and kydex sheath
* Conditions: Like new
* Commercially available Yes
* Sharpening: Original
* Marks on blade: NO
* Signs on handle: NO
* Packaging: NO
* Sheath: In kydex
* Manuals, Certificates and Guarantees: YES
* Checked and Certified by our internal laboratory

Intended Use: Military/Tactical

Type of production: industrial
Blade production: Italy
Blade: N690Co 58/60HRC stainless steel
Blade treatment: MIL-C 13924 bluing
Handle: Forprene
Blade length: 110mm.
Blade thickness: 6.3mm.
Closed length: 142mm.
Total length: 210mm.
Weight: 210g.
Clips: absent
Sheath: ABS sheath with Tek-Lok attachment with automatic knife retention system.
Note: -