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Top rated divers knives and shears

AI-generated summary · updated July 27, 2026 · verify details before purchase.

  1. Best overall

    Spyderco Atlantic Salt Folding Knife

    4.7/5 $130-$160

    Corrosion-resistant H-1 steel with serrated edge, excellent for diving and saltwater use.

    • Rust-proof H-1 steel
    • Lightweight and easy to carry
    • Secure lock mechanism
    • Higher price point
  2. Best value

    Aqualung Squeeze Lock Knife

    4.5/5 $40-$60

    Affordable, durable stainless steel blade with quick-release sheath.

    • Good corrosion resistance
    • Secure locking sheath
    • Comfortable grip
    • Blade not as sharp as premium options
  3. Budget pick

    Mares 5mm Diving Knife

    4.3/5 $35-$50

    Simple, reliable 5mm blade with rubber handle and leg straps included.

    • Very affordable
    • Leg straps included
    • Easy to clean
    • Basic design
    • Not ideal for heavy use
  4. Best premium

    Scubapro MK3 Graphite Knife

    4.6/5 $100-$130

    High-quality graphite blade, non-corrosive, with a comfortable ergonomic handle.

    • Graphite blade very sharp
    • Lightweight
    • Ergonomic handle
    • Expensive
    • Graphite can chip if abused
  5. Best compact

    Cressi Sky Dive Knife

    4.4/5 $50-$70

    Compact titanium blade with line cutting hook, ideal for travel and small hands.

    • Titanium blade lightweight
    • Integrated line cutter
    • Compact size
    • Small size limits tasks
    • Sheath can be noisy
  6. Best for beginners

    Aqua Lung R-Tek Diving Knife

    4.2/5 $30-$45

    Entry-level knife with decent stainless steel blade and secure sheath at low cost.

    • Very affordable
    • Easy to mount
    • Good beginner option
    • Less durable than premium
    • Edge retention average
  7. Best serrated

    Seac Sub Riparo Knife

    4.3/5 $60-$80

    Double-edged stainless blade with a serrated side and smooth side, versatile.

    • Double edge useful
    • Good grip handle
    • Decent price
    • Heavier than others
    • Sheath clips can break
  8. Best line cutter

    Dive Rite Titanium Line Cutter

    4.8/5 $20-$30

    Not a full knife but essential for cutting lines and nets, ultra-sharp titanium hook.

    • Extremely sharp
    • Very compact
    • Non-corrosive
    • Limited to cutting lines
    • Not a general-purpose knife

Buying advice

When choosing a diving knife, prioritize corrosion resistance (titanium or H-1 steel for saltwater), secure mounting, and ease of use with gloves. Consider a serrated edge for cutting rope and a sharp point for prying. For frequent divers, invest in a premium knife; occasional divers may prefer a budget option. Always rinse and dry after use.

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