Extrema Ratio Vipera Knife Black Forprene, Black M390 (04.1000.0484/M3/BLK/BLK)
- Vipera Black Forprene, Black, a tactical knife with full tang construction, made of M390 powder steel and equipped with a high-grip Forprene handle. ASPIS Nylon Sheath. Reliability, control and precision performance in a compact format.
225,81 €This 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.
Vipera Black Forprene, Black is a compact premium tactical knife developed for professionals operating in combat, field and rescue conditions. The model's design is inspired by agility and operational efficiency - qualities that are perfectly reflected in the knife's ergonomic design and precisely contoured blade geometry. Here, the Italian brand Extrema Ratio has combined its distinctive military aesthetic with the functionality necessary in environments that demand complete reliability. The Vipera model uses Böhler M390 steel, one of the most modern powder tool alloys. Its properties include excellent corrosion resistance, high hardness and long-lasting edge retention - ideal qualities in a utility knife exposed to difficult materials. The black protective coating acts as a reinforcement and camouflage, improving working discretion and mechanical resistance in operational conditions. Handle made of Forprene, a synthetic elastomer with high weather and chemical resistance, provides a stable and secure grip in all conditions. The profile of the handle is designed for use with gloves, and the full tang construction increases the durability and rigidity of the entire tool. The knife is adapted for dynamic, controlled use - both in precision cutting, and in demanding tactical operations . Vipera is an option for professionals and enthusiasts looking for a compact fixed blade with high functionality, modern materials and reliable construction, ready to work in all conditions.
M390 - martensitic high-performance chrome steel produced by powder metallurgy. Due to the alloy concept, it has extremely high wear resistance and high corrosion resistance. Due to its high wear resistance, it adequately maintains the shape of the edge, so the blade stays sharp for a very long time (requiring minimal maintenance). Another of the advantages is resistance to the formation of “wire” during sharpening. The steel has a high chromium content of 20.0% (Cr) doped with 1.9% carbon (C), vanadium 4.0% (V), and is hardened between 59-61 HRC. This super steel is comparable to Carpenter's CPM 20CV or CTS-204P steels. Manufactured by Böhler Edelstahl in Kapfenberg, Austria.
Blade - A drop point profile blade is used, providing versatility for tasks requiring precision and control. Powdered M390 steel offers exceptional abrasion resistance, long-lasting sharpness retention and full corrosion resistance, making it a material suitable for heavy field use. The black BURNISHED MIL-C-13924coating not only improves surface resistance, but also reduces light reflections and provides a tactical look to the blade. The flat grind (flat grind) provides optimal cutting geometry and reduces drag when working with various materials. Blade is set in a full tang design , guaranteeing maximum rigidity and reliability in all field conditions.
Handle - made of non-slip Forprene, which combines flexibility with high resistance to impact, abrasion, oils and weather conditions. The textured surface and clearly marked finger supports ensure a stable and secure grip - even when wearing gloves or in wet conditions. Thefull tang design enhances the integrity of the entire tool, and a rope hole in the back of the handle allows you to secure the knife while carrying it. The ergonomic contouring of the handle allows for comfortable operation even during prolonged use. The whole is optimized for full control of the blade, regardless of the grip or conditions of use.
Sheath - when designing the knife for professional use, great emphasis was placed on ease of carrying, access and retrieval. The knife is secured to the sheath with a quick-release fuse (snap), which can be easily reversed allowing the holster to be adjusted for both right- and left-handed users. The trigger-like snap allows for quick, instinctive knife extraction and keeps the knife from falling out. The openwork holster makes it easy to dry the blade. A system of two adjustable multi-position clamps allows the Sheath to be quickly attached under the straps of the M.O.L.L.E. system.
Technical data:
Product number: 04.1000.0484/M3/BLK/BLK
Name: Vipera Black Forprene, Black
Overall length: 236.0 mm / 9.29”
Blade length: 116.0 mm / 4.56”
Blade thickness: 4.0 mm / 0.16”
Handle length: n.d.
Handle thickness: n.d.
Weight: 94.0 g / 3.31 oz
Blade material: Böhler M390
Blade hardness: 61 HRC
Blade grind: Flat
Blade finish: MIL-C-13924 Burnishing
Handle material: Forprene
Handle finish color: Black
Sheath: ASPIS nylon
Additional accessories: None
Designer: Extrema Ratio
Brand: Extrema Ratio
Manufacturer: Extrema Ratio, Italy
Country of Origin: Italy
Developed by: the Sharg® company
