Best Divers' Knives & Shears for Diving (2026)
We selected tools based on blade steel and profile, cutting features (serrated/line-cutter), sheath retention and mount options, handle ergonomics, and overall value across budgets
The Verdict
- Best Overall: Cressi Skorpion Divers' Knife with tempered blade — Best for spearfishing: tempered blade and sturdy construction suited to heavy cutting and piercing tasks
This roundup covers divers' knives and shears suited for underwater cutting, line rescue, and spearfishing tasks, with an emphasis on corrosion resistance, blade design, and mounting options. Picks were chosen by comparing blade steel, edge type, sheath retention, and user-focused features to match different diving roles and budgets
Top Picks
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1
Best Overall Cressi Skorpion Divers' Knife with tempered blade
Best for spearfishing: tempered blade and sturdy construction suited to heavy cutting and piercing tasks
Diving knife with tempered AISI 304 steel blade, smooth and serrated edges, and wire cutter. One dual-edged blade design with a blunt/pointed tip option; includes a secure sheath. Customers note solid build and sharp edge, with some rust concerns after first use
- tempered blade
- dual-tip blade options
- integrated wire cutter
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2
Cressi Skorpion diving knife with dual-edge blade
Best for mixed tasks: dual-edge blade offers slicing and cutting versatility for general dive use
Diving knife with tempered AISI 304 steel blade, smooth and serrated edges plus a wire cutter. Features a pointed and blunt tip option and a 9.125 in total length; includes a secure sheath. Users note solid build and sharp edge, with some rust concerns after first use
- dual-edge blade with wire cutter
- tempered stainless blade
- two tip options (pointed/ blunt)
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3
Cressi Borg Long Blade Diver Knife
Best for reach: long blade and glove-friendly handle provide extra reach and control for spearfishing and retrieval
A modern, tempered 304 stainless steel dive knife with dual-edged blade and serrated section for line cutting. Ergonomic handle designed for secure grip with gloves; features a small technopolymer thumb tab separating blade and handle
- dual-edged straight and serrated blade
- ergonomic, glove-friendly handle
- temper and stainless steel construction
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4
Tanu Dive and Rescue Knife with Sheath
Best budget rescue option: compact stainless design with a dedicated line-cutter for quick emergency use
Divers' knife with blunt tip, 304 stainless blade and line cutter. Secure rubberized handle with finger stop for safety; versatile for diving, fishing, or paddling. Customers note rust resistance, solid build, but mixed grip/sharpness on arrival
- blunt-tip design for safety
- versatile blade (straight and serrated)
- secure grip with finger stop
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5
Tanu Dive and Rescue Knife with Sheath
Best compact emergency knife: low-profile sheath and line-cutting focus make it handy for rescue scenarios
Dive-ready 304 stainless-steel knife with blunt tip for safe inflatables; includes line cutter and double-edge blade. Customers note rust resistance and solid build, with mixed feelings about grip and sharpness
- blunt-tip safety design
- multipurpose blade features
- secure rubberized handle
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6
Tanu Dive and Rescue Knife with Sheath
Best stainless all-rounder: balanced blade and sheath combo for routine dive tasks and line management
multipurpose 304 stainless-steel dive knife with blunt tip for safety; metal line cutter and double-edge blade for various tasks. customers note rust resistance and secure leg fit, with some concerns about grip and sharpness
- blunt tip prevents puncture risk
- dual-edge blade versatility
- surface-malt handle grip stability
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7
Tanu Dive and Rescue Knife with Sheath, 304 Stainless
Best premium stainless option: 304 stainless blade and secure sheath for durable, long-term saltwater use
Diving knife with blunt tip and double-edged blade, mounted to dive gear for quick access. Durable stainless steel with rubberized handle and finger guard for safety; some users note grip is hard to pull out
- blunt tip for safety
- saltwater resistant stainless steel
- mounted dive-access knife