Dive Knives

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Mares Snake 2.1 Spearfishing K Picture

Mares Snake 2.1 Spearfishing Knife

SKU: MRSSNKKNIFEMFR: 425617
  • Durable Stainless Steel Dive Knife resists corrosion.
  • 5.3" Blade: Serrated edge for efficient cutting power.
  • Secure Sheath ensures knife stays in place underwater.
  • Ergonomic Handle provides a superior, firm grip.
  • Spearfishing Knife with a sharp, standard point blade.
  • Compact & Lightweight dive knife for easy carry.
New Arrival
$125.95
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Atomic Aquatics Ti6 Titanium K Picture

Atomic Aquatics Ti6 Titanium Knife

SKU: ATMKTI6
(25)
  • 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
$164.95
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Dive Rite Line Cutter Picture

Dive Rite Line Cutter

SKU: DIVAC3208MFR: AC3258
(7)
  • 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.
$24.95
In Stock
Cressi Borg Knife Picture

Cressi Borg Knife

SKU: CSBKBMFR: RC559150
(16)
  • 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.
$54.95
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Scubapro K6 Stainless Knife Picture

Scubapro K6 Stainless Knife

SKU: SCPKK6MFR: 32.006.100
(4)
  • Scubapro K6: Durable Stainless Steel Dive Knife.
  • Secure grip handle ensures safe underwater use.
  • Includes sheath & straps for convenient carry.
  • Serrated edge & line cutter for dive versatility.
  • 6.1" clip point blade for precision cutting.
  • Corrosion-resistant dive knife for lasting use.
$158.00
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Cressi Finisher Knife Picture

Cressi Finisher Knife

SKU: CSBKFMFR: RC559300
(9)
  • 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.
$63.95
In Stock
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Scubapro JAWZ Ti Picture

Scubapro JAWZ Ti

SKU: SCPJT
  • Ballistic Titanium Dive Knife: Ultimate corrosion resistance.
  • Serrated & Straight Edge: Enhanced cutting power underwater.
  • Secure Dive Knife Sheath: Ensures knife stays in place.
  • Ergonomic Handle: Provides a superior, confident grip.
  • Multi-Tool Functions: Versatile titanium dive knife.
  • Durable Titanium Blade: Maintains lasting sharpness.
Gear Aid Buri Drop Point Knife Picture

Gear Aid Buri Drop Point Knife

SKU: MCNKBRP
  • 5Cr15 Stainless Steel Dive Knife resists corrosion.
  • Drop point blade ensures lasting sharpness underwater.
  • Secure sheath & clip offer easy, safe dive knife access.
  • Ergonomic handle provides a superior, firm dive grip.
  • Durable dive knife with glass breaker & bottle opener.
  • Serrated edge effortlessly cuts through tough materials.
$29.95
In Stock
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Riffe Wrangler 3.5" Stubby  Kn Picture

Riffe Wrangler 3.5" Stubby Knife

SKU: RIFW35SKMFR: RN-4300
  • 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.
$98.00
In Stock
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Riffe Wrangler 4.5" (11.43cm)  Picture

Riffe Wrangler 4.5" (11.43cm) Knife

SKU: RIFW45K
  • 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.
$84.00$104.00
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Scuba Max Deluxe 4.88" (12.4cm Picture

Scuba Max Deluxe 4.88" (12.4cm) Drop Point Knife

SKU: SCMKDP
(1)
  • 4.88" Stainless Steel Dive Knife: Resists Corrosion
  • Drop Point Knife with Superior Blade Sharpness
  • Secure Grip Handle for Confident Underwater Use
  • Includes Durable Sheath and Leg Straps for Security
  • Compact, Lightweight Dive Knife: 10" Overall Length
  • Serrated Edge & Line Cutter: Versatile Dive Tool
Save $8
$50.00
$58.00
Save: $8.00 (14%)
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Akona Talon Stainless Steel Me Picture

Akona Talon Stainless Steel Medium Point Knife

SKU: AKNKSMFR: AK925
(9)
  • 316 Stainless Steel dive knife for corrosion resist.
  • 4.5" blade; ideal size & weight for diving needs.
  • Drop point dive knife with one-side serrated edge.
  • Secure grip handle ensures safe knife handling.
  • Includes sheath & leg straps for secure carry.
  • Integrated line cutter; essential diving multi-tool.
Save $9
$55.00
$64.00
Save: $9.00 (14%)
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XS Scuba Neuro Knife Picture

XS Scuba Neuro Knife

SKU: XSSKN
(1)
  • 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.
Save $7
$60.95
$68.00
Save: $7.05 (10%)
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Zeagle Line Cutter with Sheath Picture

Zeagle Line Cutter with Sheath

SKU: ZGLLCMFR: 5403
(10)
  • 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.
$34.95
In Stock
Gear Aid Akua Blunt Tip Knife Picture

Gear Aid Akua Blunt Tip Knife

SKU: MCNKABTMFR: 62060
  • 5Cr15 Stainless Steel Dive Knife resists corrosion.
  • Secure sheath ensures the dive knife stays in place.
  • Blunt tip dive knife with integrated line cutter.
  • Ergonomic handle provides a superior, firm grip.
  • Serrated edge on stainless steel blade for cutting.
  • Easy access dive knife with bottle opener feature.
$29.95
In Stock
UK Blue-Tang Hydralloy Steel K Picture

UK Blue-Tang Hydralloy Steel Knife, Drop Point

SKU: UKTKBTDMFR: UK-530081
(27)
  • 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.
$161.00
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Scubapro White Tip Hose/BC Mou Picture

Scubapro White Tip Hose/BC Mount Knife

SKU: SCPKWTMFR: 32.002.000
(7)
  • 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.
$85.00
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Tektite Ocean Edge Stainless S Picture

Tektite Ocean Edge Stainless Steel Dive Knife, Dagger Tip

SKU: TKTKSSMFR: TEK-OE
(1)
  • 420-Grade Stainless Steel Dive Knife for corrosion resistance.
  • Secure grip handle ensures safe knife handling underwater.
  • Durable sheath with leg straps for secure dive knife carry.
  • 3.5" stainless steel blade with straight & serrated edge.
  • Lightweight dive knife: weighs only 3.6 oz. (101 grams).
  • Dagger tip dive knife for effective cutting & prying.
$119.95
In Stock
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TUSA Mini BCD Knife, Blunt Tip Picture

TUSA Mini BCD Knife, Blunt Tip

SKU: TBTK11
(26)
  • 304 Stainless Steel Dive Knife resists corrosion.
  • Compact 6.3" BCD Knife with secure, plastic sheath.
  • Blunt Tip Knife with integrated line cutter feature.
  • Durable dive knife with one-sided serrated edge.
  • 2.8" Stainless Steel Blade ensures lasting sharpness.
  • TUSA Mini Dive Knife includes hose adapter mount.
$55.00
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Mares Force NANO Plus BCD Knif Picture

Mares Force NANO Plus BCD Knife

SKU: MRSKFNPMFR: 415627
(2)
  • PVD Stainless Steel Dive Knife resists corrosion.
  • Compact 2.56" blade; ideal Dive Knife size & weight.
  • Partially-serrated blade with integrated line cutter.
  • Secure sheath includes leg straps for dive security.
  • Blunt tip dive knife for added safety underwater.
  • Soft grip handle ensures a firm, secure knife grip.
Save $6
$89.95
$95.95
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TUSA X-Pert 2 Knife, Blunt Tip Picture

TUSA X-Pert 2 Knife, Blunt Tip

SKU: TBTK920
(12)
  • 420-Grade Stainless Steel Dive Knife Blade
  • Serrated Edge & Line Cutter Dive Knife Features
  • Blunt Tip TUSA Dive Knife with Secure Sheath
  • Corrosion-Resistant Stainless Steel Knife
  • Ergonomic Handle for Superior Dive Knife Grip
  • Compact & Lightweight: Perfect Dive Knife Size
$80.00
In Stock
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EEZYCUT Trilobite with Harness Picture

EEZYCUT Trilobite with Harness Mount

SKU: AQUEZC
(19)
  • 440A Stainless Steel Dive Knife Blade resists corrosion.
  • Compact Dive Knife with secure harness mounting system.
  • Integrated line cutter for emergency underwater use.
  • High-visibility handle on this essential dive knife.
  • Durable nylon pouch included for safe knife storage.
  • Streamlined dive knife; lightweight for easy carry.
$29.95
In Stock
Underwater Kinetics Blue-Tang  Picture

Underwater Kinetics Blue-Tang Titanium Knife, Blunt Tip

SKU: UKTKTBBMFR: UK-530071
(10)
  • Titanium dive knife resists corrosion in saltwater.
  • Secure grip handle ensures safe knife handling.
  • Blunt tip dive knife for added safety underwater.
  • Lightweight titanium knife with compact sheath.
  • Sharp blade easily cuts lines; essential dive tool.
  • Durable titanium dive knife with sheath security.
$161.00
In Stock
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Gear Aid Tanu Dive and Rescue  Picture

Gear Aid Tanu Dive and Rescue Knife

SKU: MCNTBTK
  • Durable dive knife with 3" 304 stainless steel blade.
  • Thermoplastic rubber grip ensures secure knife handling.
  • Acetal sheath offers safe, mountable knife portability.
  • Integrated line cutter enhances rescue knife versatility.
  • Blunt tip design provides added safety during dives.
  • Lightweight dive knife; ideal for camping and hiking.
$39.95
In Stock
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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.