- Tactical Elementum Dagger, a compact full tang diver's knife from Italian company FOX with an N690Co steel blade with a matte black coating. Ideal tool for use during diving expeditions, underwater hunting and work on land.

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.
Tactical Elementum Dagger, a compact (back-up) full tang diver's knife from Italian company Fox FKMD with matte black coated blade. Ideal tool for use during diving expeditions, underwater hunting and work on land.
N690Co - a high-cobalt 1.65% (Co), corrosion-resistant, high-carbon 1.07% (C), martensitic stainless steel with 17.30% chromium (Cr), and additional elements such as molybdenum 1.10% (Mo) and vanadium 0.10% (V). Developed to provide superior wear resistance compared to the original Böhler N690 steel, it features an increased cobalt content of 1.50% (Co) to enhance structural uniformity. It is known for its exceptional corrosion resistance and long edge retention. Considered one of the best tool steels in the world, it is hardened to a range of 58-61 HRC. Manufactured by Böhler Edelstahl in Kapfenberg, Austria.
Idroglider® Black - the durability of the blade surface and cutting edge has been enhanced with a scratch-resistant, matte black non-reflective protective coating made from PTFE. This coating ensures long-lasting performance and rust resistance.
Blade - Dagger, thickness 3 mm. Covered with scratch resistant, matt non-reflective Idroglider® Black coating made of PTFE. Finish provides long blade life and rust resistance. Both sides of the blade have a Flat Grind for superior cutting performance. One of the blades is fully smooth Plain, the other Serrated (for cutting hard materials, plastics and fibers such as ropes, cords, lines) ending on the handle side with an eyelet for cutting nets. Serrated blade used in diving knives, survival knives, rescue knives and survival knives consists alternately of one large and three small teeth so called three-step. This pattern increases the length of the cutting edge by up to 24% compared to a straight blade. Ideal for aggressive cutting of hard materials, plastics and fibrous materials such as ropes or nets.
Handle - black in color. Covered with non-slip textured rubber-like grips made of thermoplastic elastomer, also called TPE (guarantees safe grip in water environment), combined with PP polymer. Ergonomic shape of the facings prevents the hand from slipping during work. The head is finished with a lanyard hole, a hole for safety cable.
Sheath - made of Kydex plastic adapted to drain water, moisture. Two mounting buckles made of plastic to use multiple options for attaching the knife, to the equipment or to the user.
Technical data:
Product number: FX-647 S
Product Name: Tactical Elementum Dagger
Overall length: 200.0 mm / 7.87"
Blade length: 100.0 mm / 3.94"
Blade thickness: 3.0 mm / 0.12"
Weight: 180.0 g / 6.35 oz
Steel Type: N690Co
Blade hardness: 58-60 HRC
Cutting edge type: Plain & Serrated
Blade Type: Dagger
Handle Material: PP + TPE (polypropylene + thermorubber)
Handle finish color: Black
Sheath: Kydex
Design: Fox Knives
Brand name: FKMD
Manufacturer: Fox Cutlery, Italy
Developed by: Sharg® company