Dive Knives
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Dive Rite Line Cutter
- Surgical stainless steel dive knife blade resists corrosion.
- Hooked line cutter effortlessly slices through tangled lines.
- Dive knife's reinforced nylon handle ensures a secure grip.
- Compact dive knife with pouch; easy BCD attachment.
- Durable stainless steel dive knife for reliable cutting.
- Streamlined dive knife: 4.5-inch blade, lightweight design.
Cressi Finisher Knife
- Cressi Finisher: Durable 420 stainless steel dive knife.
- Secure grip: Rubber handle ensures safe knife handling.
- Serrated edge & line cutter for underwater tasks.
- Stiletto point dive knife for precision cutting needs.
- Includes sheath and leg straps for secure carry.
- Corrosion-resistant dive knife; 5.11" blade length.
Riffe Wrangler 3.5" Stubby Knife
- 420 Stainless Steel Dive Knife Blade resists rust.
- 3.5" Blade Dive Knife is compact, easy to handle.
- Heat-Treated Knife Blade ensures lasting sharpness.
- Secure Nylon Sheath keeps dive knife safely stowed.
- Rubber Leg Straps offer comfortable knife placement.
- Compact Stubby Knife design for spearfishing dives.
Riffe Wrangler 4.5" (11.43cm) Knife
- Nitro-B Stainless Steel dive knife blade resists corrosion.
- Secure grip handle ensures safe use underwater.
- Pointed tip dive knife for precision cutting tasks.
- Durable sheath with straps for secure, easy access.
- Dual serrated edge dive knife for versatile cutting.
- Compact 4.5" stainless steel knife; essential dive gear.
UK Blue-Tang Hydralloy Steel Knife, Drop Point
- Hydralloy dive knife resists corrosion effectively.
- Secure grip handle ensures safe knife handling.
- Durable dive knife with a 5-inch stainless blade.
- Quick access sheath for dive knife emergencies.
- Serrated edge dive knife cuts lines with ease.
- Drop point tip enhances dive knife precision.
Salvimar Predathor Knife, Green
- 420-Stainless Steel Dive Knife resists corrosion.
- Serrated edge & drop point dive knife for versatility.
- Secure sheath ensures safe, reliable knife carry.
- 6.3" blade dive knife; ideal size & easy to handle.
- Ergonomic handle provides a superior, firm grip.
- Durable dive knife with a 2-year limited warranty.
XS Scuba Stryker Knife
- 420-Stainless dive knife resists corrosion.
- Serrated edge & line cutter for dive versatility.
- Secure sheath with quick-release for easy access.
- Ergonomic handle ensures a superior, firm grip.
- Choose blunt or drop point dive knife tip style.
- Includes leg straps for secure, hands-free carry.
Seac Samurai Knife
- Durable stainless-steel dive knife resists corrosion.
- Secure sheath ensures safe, reliable dive knife carry.
- Serrated edge on dive knife for efficient cutting power.
- Compact dive knife with stiletto tip for precision.
- Ergonomic handle offers superior grip underwater.
- Essential dive knife for spearfishing and exploration.
Scuba Max Deluxe 4.88" (12.4cm) Blunt Blade Knife
- 420-Grade Stainless Steel dive knife blade resists corrosion.
- Blunt tip dive knife with partially serrated edge.
- Secure grip rubber handle ensures safe knife handling.
- Includes durable ABS sheath & leg straps for security.
- Integrated line cutter for multi-tool dive functionality.
- Compact 4.88" stainless steel blade; 10" overall length.
Gear Aid Tanu Dive and Rescue Knife with BCD Adapter
- Durable dive knife with 3" stainless steel blade.
- Compact rescue knife includes BCD adapter plate.
- Lightweight dive tool with ergonomic rubber grip.
- Multi-tool knife features integrated line cutter.
- Corrosion-resistant camping knife for safety needs.
- Secure acetal sheath ensures safe, easy carry.
Zeagle Line Cutter with Sheath
- Durable stainless steel dive knife resists corrosion.
- Secure sheath ensures safe, easy dive knife access.
- Sharp blade effortlessly cuts lines underwater.
- Ergonomic handle provides a non-slip, firm grip.
- Compact dive knife design; ideal size and weight.
- Integrated line cutter enhances diving safety.
Blue Reef Shears Cutter with Holster
- 400-Series Stainless Steel Dive Knife Blade
- Secure Dive Knife Holster Included for Easy Access
- Corrosion-Resistant Stainless Steel Dive Knife
- Durable Shears Cutter with Plastic Finger Grips
- Essential Diving Knife with Integrated Line Cutter
- Blue Reef Dive Knife: 2-Year Limited Warranty
Highland by XS Scuba Titanium EMT Shears
- Premium titanium dive knife for ultimate durability.
- Corrosion-resistant titanium blade ensures lasting use.
- Sharp dive knife easily cuts through tough materials.
- Secure-grip handle offers control underwater safely.
- Blunt tip titanium knife prevents accidental damage.
- Lightweight dive shears with secure locking sheath.
Mares Argo Knife
- Durable stainless steel dive knife resists corrosion.
- Secure sheath ensures safe, reliable knife retention.
- Ergonomic handle provides a superior, confident grip.
- Serrated edge effortlessly cuts through tough lines.
- Compact dive knife with a sharp stiletto point.
- Includes straps for convenient, secure leg mounting.
XS Scuba Neuro Knife
- 304 Stainless Steel dive knife resists corrosion.
- Serrated edge & line cutter for cutting power underwater.
- Clip point dive knife blade ensures piercing ability.
- Ergonomic handle provides a secure, comfortable grip.
- Includes sheath & straps for secure, easy access.
- Multi-tool functions enhance diving preparedness.
XS Scuba Black Knight Spear Fishing Knife
- 420-Stainless steel dive knife resists corrosion.
- Serrated edge & sharp straight edge diving knife.
- Stiletto point dive knife for effective penetration.
- Secure sheath with straps ensures knife retention.
- Ergonomic handle provides a superior, firm grip.
- Compact 4.13" blade; ideal size & weight for diving.
Scubapro White Tip Hose/BC Mount Knife
- 304 Stainless dive knife resists corrosion.
- Secure sheath for BCD/hose mount included.
- Blunt tip dive knife for added safety underwater.
- Serrated edge stainless steel blade for cutting.
- Compact 5.8" dive knife; lightweight 3.3 oz.
- Ergonomic handle ensures a firm, secure grip.
Cressi Borg Knife
- 402-Stainless Steel Dive Knife Blade resists corrosion.
- Secure grip handle ensures safe diving knife use.
- Durable dive knife with integrated line cutter tool.
- Choose drop point or blunt tip stainless dive knife.
- Includes sheath & leg straps for secure knife carry.
- Serrated edge on this stainless steel diving knife.
TUSA Mini BCD Knife, Drop Point Tip
- 304 Stainless Steel Dive Knife resists corrosion.
- Serrated edge & drop point dive knife blade for cutting.
- Secure sheath with quick release for easy access.
- Compact 6.3" overall length dive knife is easy to stow.
- Durable plastic handle ensures a firm, secure grip.
- Includes hose adapter for convenient BCD knife mount.
Atomic Aquatics Ti6 Titanium Knife
- Corrosion-Resistant Titanium Dive Knife Blade
- Crafted with a titanium blade, this dive knife offers superior corrosion resistance
- Secure Grip Handle on this Titanium Knife
- Sharp Titanium Blade Cuts Lines Effortlessly
- Lightweight Titanium Knife with Secure Sheath
- Durable Titanium Dive Knife with Pointed Tip
Cressi Lizard Stainless Steel Knife
- Durable W 1.4116 Stainless Steel Dive Knife.
- Hardened Blade: HRC 55/56 for lasting sharpness.
- Secure grip handle: Confident control underwater.
- Streamlined dive knife with a standard point blade.
- Corrosion-resistant stainless steel dive knife.
- Compact & lightweight: Essential diving equipment.
Mares Ascent Knife
- Martensitic Stainless Steel Dive Knife Blade.
- Corrosion-Resistant Steel for Saltwater Diving.
- Secure Grip Dive Knife Handle, Enhanced Control.
- Streamlined Dive Knife Sheath, Safe & Secure.
- Standard Point Dive Knife for Versatile Use.
- Compact & Lightweight Stainless Steel Dive Knife.
Riffe Every Day Carry (EDC) 3.5" (8.9cm) Knife
- 420 Stainless Steel dive knife resists corrosion.
- Secure sheath ensures safe, reliable knife carry.
- Serrated edge & pointed tip for versatile cutting.
- Ergonomic handle provides a superior, firm grip.
- Includes straps & lanyard for dive knife security.
- Easy-clean Teflon coated dive knife blade.
XS Scuba Rook Knife
- 304 Stainless Steel Dive Knife resists corrosion.
- Serrated edge & line cutter for underwater tasks.
- Blunt tip dive knife ensures safety underwater.
- Secure sheath keeps dive knife safely in place.
- Ergonomic handle provides a superior, firm grip.
- Compact 6.25" dive knife with easy, quick access.
Keep yourself safe while diving with a dive knife. Our knives are designed to help you cut through ropes, nets, and other underwater obstacles. Shop now and dive with confidence!
A dive knife is a vital safety accessory that every scuba diver should own. Knives designed for underwater use have a few key features that separate them from traditional knives for land-based activities. In fact, many dive knives are so specialized that some divers prefer to carry two or more knives on each excursion, so they’re ready for any situation.
Common Materials for Dive Knives
Most diving knives are made of either stainless steel or titanium. Many divers prefer titanium because it will never rust. Titanium is also stronger than stainless steel and weighs a bit less.
However, if you’re on a tight budget, you may prefer stainless steel because of the price differences. Stainless steel knives are more common, but there are a few variations to consider. You’ll notice a few different grades of stainless steel as you shop for a dive knife, including 304-grade, 316-grade, and 420-grade.
The least durable option is 304-grade steel, so if you buy a knife with this grade of steel, you’ll need to sharpen your knife more frequently to preserve its sharp edge. By contrast, 420-grade steel is considered quite durable, so it can stand up to most underwater cutting applications.
Folding Knife vs Sheath Knife
Most day-to-day pocket knives feature a folded blade so you can safely tuck them in a pocket and unfold them for use. If you choose a folded blade, it’s best to have a spring-assisted knife so you can open it one handed.
Sheathed dive knives feature a blade attached to a handle and protective sheath for safely storing your blade. These knives are easy to use and access single handed.
Common Knife Tip Styles
Scuba diving knives feature either a blunt tip or a pointed tip. Blunt-tip knives can double as a pry tool or screwdriver underwater for added functionality. Pointed knives are a helpful accessory if you spearfish or carry your knife as protection from underwater predators.
Find the Right Diving Knife for You
In unexpected situations, your scuba knife can be the difference between tragedy and a positive outcome. That’s why it’s so important to invest in a high-quality dive knife. With durable, grippable handles, strong blades, and helpful features like line cutters, serrated back edges, and harness mounts, diving knives from Cressi, Akona, Blue Reef, Gear Aid, and Mares are always a good choice.