Sport, Military and Collectible Knives | Coltelleria Collini
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Extremaratio - Fulcrum II D Folder Knife - PRIVATE COLLECTION - knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: previously purchased
* Condition: in perfect mechanical condition, aesthetically shows some abrasion and signs of wear due to the passage of time
* Available on the market: iconic model from the early 2000s, now out of production
* Sharpness: Factory sharpness, could be improved
* Marks on blade: some minor abrasions due to age
* Marks on handle: cosmetic abrasions due to age
* Box: -
* Manuals, certificates, and warranties: -
* Checked and certified by our in-house laboratoryDirectly derived from military specifications, this folding knife is designed to replace a fixed blade in the most demanding operational situations. To ensure maximum reliability, extremely robust materials, increased thicknesses, and a solid and secure back lock opening/closing system have been used.
A manual safety lock ensures maximum protection during use, drastically reducing the risk of accidental closure. When inserted in the closed position, it also prevents the knife from being immediately used against the operator in the event of theft.
Materials and workmanship
All components are machined from solid blocks using high-precision CNC machines, while assembly, adjustment, and sharpening are carried out by hand. The blade is made of N690 cobalt stainless steel, known for its high mechanical strength, great cutting ability, edge retention, and excellent corrosion resistance. It has a flat grind and a hardness of 58 HRC.The scales are made of Anticorodal, an aluminum alloy that is highly resistant to stress and oxidation. The tang, made of hardened N690, acts as an effective emergency glass breaker. Screws, pins, and clips are made of burnished stainless steel, while the blade, lever, and tang are protected by Testudo treatment, which is highly resistant to abrasion and oxidation. The scales are black anodized.
Intended use: tactical/militaryBlade: N690Co 58HRC stainless steel with burnished “testudo” finish
Country of manufacture: Italy
Blade length: 95mm.
Blade thickness: 6.3mm.
Closed length: 127mm.
Total length: 220mm.
Handle: Anticorodal, 4.5mm thick
Weight: 200g.
Closure: Back Lock with additional safety system, also functioning when the blade is closed
Clip: removable and reversible, stainless steel
Sheath: -
Notes: previously purchased knife from a private collectionERF2D-CP -
ExtremaRatio - MPC knife Selected Shooters - PRIVATE COLLECTION - knife
- 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.
AP-MPC -
ExtremaRatio - MPC Desert Warfare - 2014 Full Set - PRIVATE COLLECTION - Knife
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 conditionER-MPCDW-CP








