TUSA Sport FK-11 Mini-Knife
Model Numbers: FK-11 (Blunt Tip)
The TUSA FK-11 Mini-Knives are compact, lightweight cutting tools designed to deliver dependable, rapid-access utility under water. Forged from high-grade, edge-retaining stainless steel, these sharp multi-purpose knives can be mounted directly onto a buoyancy compensator grommet or clamped cleanly over an instrument hose. Each knife comes standard with an impact-resistant locking sheath and a dedicated hose adapter, making it an essential safety tool for clearing fishing line, nets, or kelp entanglements.
Knife Features
FK-11 Mini-Knife (Blunt Tip):
- Shares identical dimensions, premium stainless steel blade edge compound, and cutting capabilities as the FK-10
- Specialized blunt safety tip profile prevents accidental punctures to your drysuit, exposure suit, or BC air bladder
- Blade Length: 2 7/8 inches / 7.3 cm
- Overall Length: 6 3/8 inches / 16.2 cm
- Colours Available: Black, Cobalt Blue, Fluorescent Yellow
FK-10HA Hose Adapter (Included Bundle):
- Custom structural hardware mount allows the sheath to be securely clamped directly onto a high-pressure (HP) or low-pressure (LP) regulator hose, keeping your cutting edge accessible on your chest profile
Technology
SINGLE-TOUCH SHEATH LOCKING MECHANISM
The heavy-duty thermoplastic resin sheath features a positive mechanical internal locking tab. Upon sliding the knife into place, the lock automatically engages with an audible click, eliminating the risk of losing the tool during shore entries or overhead tracking. A simple thumb press releases the retention mechanism instantly for smooth, single-handed deployment.
ADVANCED EDGE-RETAINING STAINLESS STEEL
The blades are forged from premium heat-treated marine-grade stainless steel, precisely tempered to offer excellent mechanical strength and superior oxidation resistance. This structural composition ensures the serrated edges and specialized line cutters maintain sharpness across extended dive seasons when subjected to aggressive saltwater exposure.
VERSATILE MODULAR MOUNTING ARCHITECTURE
The compact footprint is engineered to adapt cleanly to various configurations. Utilizing the included FK-10HA hose adapter or built-in eyelets, divers can clamp the system directly to a console hose, mount it flat against a BC pocket, or secure it inside standard buoyancy compensator accessory grommets for streamlined, low-drag placement
With the TUSA diving knife series, high quality stainless steel or titanium, which cuts well and is superior in strength and corrosion resistance, is used for the blade.
Electrolytic polishing, buff polishing, and clear paint coating protect the knife from the harsh environment.
The knife is equipped with two types of blades, one saw-edge (serrated) and one crochet-edge (gut hook), to meet various needs in various situations.
The release and lock mechanism enables you to remove the knife quickly by softly touching the button.
The double security mechanism has been adopted so that the knife does not come off even if the button is pressed by mistake.
To enjoy safe and comfortable diving, at least one diving partner must wear a diving knife which will help in an emergency.
REMOVE OR RETURN KNIFE,
When removing the knife from the sheath, pull the grip up and out while pushing the release button.
When returning the knife to the sheath, push the grip until you hear a click.


