- Dobermann IV Tactical Black the most versatile knife Extrema Ratio. It works perfectly during hunting outdoor activity and for defense. Blade with Drop Point profile with wave-shaped cutting edge.

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.
Dobermann IV Tactical changed over the years to meet the ever-changing needs of users, while maintaining consistency with the original design, K1 Dobermann knife from 1997. Also the last IV version is distinguished by its extraordinary structural strength and flexibility during use, this is probably the most versatile Extrema Ratio knife. Dobermann IV is perfect during hunting, outdoor activity nad defense.
Blade - massive, 6.3 mm thickness with long fixed blade. Blade with Drop Point profile with an above-average cutting edge in the shape of a wave (Revurve), used among others in good tactical, survival and hunting knives. Manufactured from high-strength, rugged, high-grade N690 stainless steel with a hardness of 58 HRC, made at the Austrian Böhler steelworks. The blade is covered with a mate, non-reflective MIL-C-13924 BURNISHING coating. Smooth blade (Plain type) was made with a flat cut (Flat grind).
Handle - covered with non-slip, textured linings with rubber-like properties, made of Forprene thermoplastic elastomer (elastic return, softness, resistance to chemicals), guarantees a secure grip even with wet hands. On the back of the handle was placed a textured thumb ramp. A steel head with an enlarged gap (lanyard hole) that allows you to pull a leash or a safety rope, can act as a hammer / glass breaker.
Sheath - tactical made of tear-resistant, waterproof nylon in black color, allows you to quickly get a knife from each position. The case has a M.O.L.L.E. attachment for carrying the knife in a vertical position on a belt or waistcoat.
Technical specification:
Product number: 04.1000.0184/BLK
Name: Dobermann IV Tactical
Overall length: 316.0 mm / 6.0”
Length of the blade: 185.0 mm / 7.28”
Thickness of the blade: 6.3 mm / 0.25"
Thickness of handle: n.d.
Weight: 336.0 g / 11.85 oz
Blade material: Böhler N690
Blade hardness: 58 HRC
Blade grind: Flat
Blade finish: MIL-C-13924 Burnishing
Handle material: Forprene
Handle finish color: Desert
Sheath: Nylon
Designer: Extrema Ratio / COMALP
Brand name: Extrema Ratio
Manufacturer: Extrema Ratio, Italy
Country of origin: Italy
Created by: Sharg® Company