Made to military specs, this folder series was developed to substitute, or compliment, a fixed blade. To reach this result, Extrema Ratio used only the hardest, thickest materials and a very safe, well tested locking system: the Back Lock. To reach the maximum level of safety while using the folder and to reduce the risk of accidental closing of the blade, the knife is equipped with a manual rifle/like safety system. When the knife is closed, the safety reduces the risk that the knife could be opened and used against the owner (Military or Police operators)..
All the knife parts are milled with CNC high precision milling machinery. The assembling, quality control and sharpening are done by skilled craftsmen. The blade is made with N690 Cobalt Stainless Steel which is a high performance steel with excellent cutting and sharpening characteristics.
The blade is a flat grind and has 58HRC hardness. The handle is made of black anodized Anticorodal, a type of aluminium that is very strong and resistant to corrosion. The end of the handle, made of hardened N690 which makes an effective glass breaker. All the screws, pins and clip are made from burnished stainless steel. The blade, lever, and tang are coated with a Testudo costing which is very resistant to abrasion and oxidation.
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