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Extrema Ratio
Extrema Ratio, located in Prato, Italy, has been designing, manufacturing and selling high performance combat ,military, kitchen, hunting and tactical knives since 1997 enjoying a reputation for excellence that is unsurpassed in the military and tactical knife industry.
The increased capacity through the years enabled Extrema Ratio to extend its operations. As part of this effort, the company moved in 2004 to a new 600 square meter facility in order to meet the market demand and the company quickly established itself as one of the country's leading cutlery manufacturers.
Extrema Ratio serves military and law enforcement communities (for kitchen knives, best hunting knives) as well as commercial markets and the knives like are well known and sought after all over the globe.
The company prides itself in design, material and quality to deliver a high end product that meets the most severe mil-standards.
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ExtremaRatio - Ti-Rock Satin Limited Edition - Laminated CoS & Blue Titanium - PRIVATE COLLECTION - knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously purchased
* Condition: Like new, never taken out of its packaging.
* Commercially available: Discontinued
* Sharpening: Factory
* Marks on blade: None
* Marks on handle: None
* Box: Present
* Scabbard: /
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory
Coltelleria Collini exclusive - Available in only 33 numbered examples on blade and box
Intended use: collection / EDC / CQDType of production: industrial, limited
Blade: Japanese laminated stainless steel (San Mai) with cryogenically hardened 61.5HRC CoS cutting edge; with double concave shank in the strong of the blade
Blade treatment: satin finish
Country of manufacture: Italy
Handle: made of Titanium, machined from solid, with integral Frame Lock system with removable casement and safety made of stainless steel
Blade length: 75mm.
Blade thickness: 6.3mm.
Total length: 180mm.
Weight: 186g.
Clip: stainless steel, reversible, deep pocket type and with tip up port
Notes: tapered Skull Crasher engaged in the tang - Limited and numbered edition of only 33 pieces serialized on the blade and box
Box: cardboard, numbered, with ExtremaRatio and Coltelleria Collini logosTIROCK-C-BL-CP€0.00Only -20 leftOnly -20 left
Out of stock -
ExtremaRatio - BF2H Helmsman - Multitool Sailing Knife
Helmsman is a knife designed and perfected in every single detail for its primary use in a nautical environment and represents the evolution of the BF2 V model presented on the Amerigo Vespucci School Ship in 2013 and dedicated to the most beautiful ship in the world.
The blade, which reaches a length of 87 mm, has a serration at the base while the tip has a flat grinding that allows symmetrical cutting work with wider support while the stone washed finishing process preserves more from corrosion in a marine environment.
Intended use: Sports / Tactical / For Sailing Boat
Type of production: industrial
Blade: N690Co 58HRC stainless steel with Stone Washed finish
Country of production: Italy
Handle: Anticorodal with stainless steel reinforcements
Blade length: 87mm.
Blade thickness: 3mm.
Length closed: 124mm.
Total length: 210mm.
Weight: 143g.
Closure: Liner Lock
Clip: reversible and removable in stainless steel
Notes: ankle band / loose knots - small shackle - Tactical quick release hanger - Safety catch with open knife - Safety ankle fastener / Knot releaseER-BF2H€200.82Only 0 leftOnly 0 leftOut of stock -
ExtremaRatio - Ti-Rock Satin SanMai CoS - Titanium Blue - Limited Edition - folding knife
A Coltelleria Collini Exclusive - Limited edition, available in only 33 serialized pieces
Intended Use: collection / EDC / CQDType of production: Industrial, Limited
Blade: Japanese-rolled stainless steel (San Mai) with sharp CoS to 61,5HRC in cryogenic quenching; with fuller double concave in the strong blade
Blade treatment: Satin finish
Production Country: Italy
Handle: Titanium, Billet, with full Frame Lock locking system with sash and secure removable made of stainless steel
Blade length: 75mm.
Blade Thickness: 6.3mm.
Overall length: 180mm.
Weight: 186g.
Clips: stainless steel, reversible type deep pocket and port tip up
Notes: Skull Crasher tapered shank engaged in - Edition limited and numbered edition in only 33 serialized pieces on the blade and box
Box: cardboard, numbered, with ExtremaRatio logos and Coltelleria ColliniTIROCK-C-BL€0.00Only -99 leftOnly -99 leftOut of stock
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