Extrema Ratio Ontos No Kit Black Forprene, Black N690 (04.1000.0127/BLK-NK)
- Ontos Black No Kit suggestions from professionals prompted ER to make a strong and heavy compact field knife that performs well in all conditions. The serrated back of the blade serves as a back-up to avoid getting caught without sharp edge ready for use
£338.34This product is intended for use only by adults with knowledge and experience in handling sharp cutting tools. Improper use of the knife can result in serious injuries. The blade is extremely sharp and can easily cut through skin and tissue; therefore, extra caution should always be exercised while cutting, and hands should be kept away from the cutting edge. To prevent the knife from slipping, it is recommended to cut on a stable, non-slip surface and avoid excessive force, which may cause uncontrolled blade movement.
Leaving the knife on the edge of a table, countertop, or in easily accessible places—especially where children are present—poses a significant safety risk. The knife should always be properly secured after use, ideally by placing it on a stable surface or storing it in designated knife blocks, protective sheaths, or magnetic strips. The knife should never be used for tasks it is not designed for, such as opening cans or prying objects, as this can damage the tool and lead to dangerous accidents.
A dull blade increases the risk of injury, as it requires more force and is more likely to slip from the material being cut. Therefore, it is essential to sharpen the knife regularly to maintain optimal sharpness. Additionally, proper cleaning and drying of the knife are necessary to prevent corrosion and bacterial growth. Periodic inspection of the handle and blade is recommended to check for cracks, chips, or looseness. If any damage is detected, the knife should be repaired or replaced immediately.
When using the knife, focus solely on the task at hand—avoid talking on the phone, watching television, or other distractions while cutting. Ensure proper lighting in the workspace for better visibility and control. Please note that some countries or regions have laws restricting the ownership and carrying of knives. Before purchasing or using this knife, verify that its use is legal in your location according to applicable regulations.
Following these safety guidelines will help ensure safe and effective knife use, minimizing the risk of accidents and extending the lifespan of the tool.
Ontos Black No Kit, demand from professionals prompted Extrema Ratio to design a versatile survival tool that works in all conditions. The Ontos <the thing in Greek> is a pure field knife, strong and heavy despite its compact size. The serrated back of the blade serves as a backup (back-up) so you'll never be caught without a sharp edge ready to use.
Extremely durable, versatile knife with a head that can withstand 150kg bending loads without fear of breaking. Easy-to-sharpen tanto shape maintains a sharp cutting edge and penetration ability regardless of wear. With its weight and balance on the blade, the Ontos Black is an excellent knife for battlefield use and is suitable for heavy field work. Solid handle, easy to replace in case of damage.
N690 - corrosion-resistant, high-carbon 1.07% (C), martensitic chromium steel 17.30% (Cr) with molybdenum 1.10% (Mo), vanadium 0.10% (V) and cobalt 1.50% (Co) for structural uniformity. Features exceptionally high corrosion resistance and long edge retention. One of the best tool steels in the world today. It achieves a hardness of 57-60 HRC. Manufactured by Böhler Edelstahl in Kapfenberg, Austria.
Blade - modified Tanto, with a thickness of 6.3 mm. Blade is coated with matte non-reflective black coating. The blade is plain with Flat grind. On the back of the blade there is a short section of serrated edge, perfect for cutting rope or plastic. Serrated Edge used in tactical, survival and rescue knives. Consists of alternating one large and two small teeth, this pattern increases the length of the cutting edge by up to 24% compared to a straight blade. Ideal for cutting hard materials, plastics and fibers.
Handle - full size FH (Full Handle) type used in assault knives Extrema Ratio. Anti-slip linings with rubber-like properties, made of Forprene thermoplastic elastomer (elastic return, softness, resistance to chemicals), guarantee a firm grip also when wet hands. Steel head with enlarged oval lanyard hole to allow pulling a lanyard or safety cord, can be used as a hammer / glass breaker and more...
Sheath - black abrasion resistant waterproof nylon thigh-high sheath with M.O.L.L.E. system webbing attachment. (Modular Lightweight Load-carrying Equipment). Holster allows you to carry the knife on your belt or vest compatible with MOLLE system. Lower part of the scabbard with Velcro strap for attachment to the thigh.
Technical data:
Product number: 04.1000.0127/BLK-NK
Name: Ontos Black
Total length: 299.0 mm / 11.80"
Blade length: 168.0 mm / 6.6"
Blade thickness: 6.3 mm / 0.25"
Thickness of handle: n.d.
Weight: 411.0 g / 14.50 oz
Blade material: Böhler N690
Blade hardness: 58 HRC
Blade grind: Flat
Blade finish: MIL-C-13924 Burnishing
Handle material: Forprene
Handle finish color: Black
Sheath: Nylon
Designer: Extrema Ratio
Brand name: Extrema Ratio
Manufacturer: Extrema Ratio, Italy
Country of origin: Italy
Developed by: Sharg® company
