Stainless Steel Diving Knife | Spearfishing & Rope Cutter

Stainless Steel Diving Knife – Built for the Water

Whether you're spearfishing, free diving, snorkeling, or heading out on open-water adventures, this rugged stainless steel diving knife is an essential piece of kit. Designed to handle demanding aquatic conditions, it features a razor-sharp 80mm blade, a comfortable plastic handle, and a compact full length of just 175mm — making it easy to carry and quick to deploy when you need it most. The serrated edge doubles as an efficient rope cutter, ideal for freeing yourself or a fellow diver from tangled lines, nets, or kelp.

Made in Mainland China.

Why Divers Love This Knife

• Corrosion-Resistant Stainless Steel: The 3mm thick blade is crafted from hardened stainless steel (55 HRC) to withstand prolonged exposure to saltwater and freshwater environments.
• Compact & Lightweight: At just 108g (185g with full kit), this knife is light enough to forget you're wearing it — until you need it.
• Sharp, Durable Blade: An 80mm blade with ≤60° blade angle ensures precise cutting performance whether you're handling fish, cutting rope, or managing gear underwater.
• Secure Mounting System: Comes with an ABS scabbard, nylon belt buckle, and 2 rubber straps so you can mount the knife securely to your leg, arm, or BC vest for instant access.
• Multi-Use Tool: Suitable for spearfishing, scuba diving, water rescue, camping, and general outdoor use.

Full Specifications

What's Included

• 1 × Stainless Steel Diving Knife
• 1 × ABS Scabbard
• 1 × Nylon Belt Buckle
• 2 × Rubber Mounting Straps

Note

Due to manual measurement, please allow a tolerance of 1–3 mm. Colors may vary slightly from product images due to monitor display differences.

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For general water safety guidelines and outdoor aquatic activity tips, visit the CDC Healthy Swimming Resource.

Frequently Asked Questions

Q: Is this diving knife suitable for saltwater use?

A: Yes! The blade is made from hardened stainless steel (55 HRC), which offers excellent resistance to corrosion in both saltwater and freshwater environments — making it a great choice for scuba diving, spearfishing, and water rescue applications.

Q: How is the diving knife attached to my body?

A: The kit includes an ABS scabbard, a nylon belt buckle, and 2 rubber straps. These allow you to mount the knife securely to your leg, forearm, or buoyancy compensator vest for hands-free carrying and quick access underwater.

Q: Can this knife cut rope and fishing lines?

A: Absolutely. The sharp stainless steel blade with a ≤60° blade angle is designed to cut through rope, fishing line, netting, and kelp efficiently — making it a practical tool for both spearfishing and water rescue situations.

Q: What is the total length and weight of the knife?

A: The total length is 175mm (about 6.9 inches) with an 80mm blade. The knife alone weighs 108g, while the full set including scabbard and straps weighs 185g.