Product Description
The Benchmade H20 is a fixed blade dive and maritime knife built around N680 stainless — the nitrogen-alloyed Böhler-Uddeholm steel that outperforms 154CM, CPM-S30V, and 440C in saltwater and sustained submersion environments. It's designed for divers, watermen, and maritime personnel who need a reliable cutting tool that won't corrode in the conditions where it's actually used.
The 3.50-inch blade carries a black coating and combo edge: the plain section handles general utility and line cutting, while the serrated section provides aggressive bite on braided rope, netting, and synthetic materials that resist a plain edge under water pressure. The sheepsfoot-style profile keeps the tip blunt and safe for underwater work — reducing the risk of accidental puncture of a dry suit, BC, or other gear while still delivering a strong cutting edge along the full belly. The handle is overmolded for wet-hand grip and integrates with the included black polymer sheath for secure retention.
Built for water. Ships same or next business day from Knifeworks in Columbia, Louisiana.
• Blade Steel: N680 stainless, black coated — nitrogen-alloyed for superior saltwater and submersion corrosion resistance vs. 154CM, CPM-S30V, or 440C
• Blade: 3.50" sheepsfoot profile, combo edge, black coated — blunt tip for safe underwater gear handling; serrated section for rope and netting
• Combo Edge: Plain section for line and utility cuts; serrated section for braided rope, netting, and synthetic materials under water pressure
• Handle: Overmolded construction — textured for positive grip with wet or gloved hands
• Sheath: Black polymer sheath included — secure retention system for dive and maritime carry
• Fixed blade construction — no folding mechanism, immediate deployment from the sheath
• Weight: Verify on manufacturer page
• Warranty: Benchmade LifeSharp warranty — free lifetime sharpening, blade replacement, and mechanical repair
Specifications:
| Product Type | Fixed Blade | |
| Product Name | H20 | |
| Model # | BM112SBK-BLK | |
| Overall Length | 8.07 in | |
| Blade Length | 3.50 in | |
| Handle Length | 4.57 in | |
| Blade Thickness | 0.140 in | |
| Handle Thickness | 0.59 in | |
| Blade Material | Bohler N680 | |
| Blade Hardness (HRC) | 57-59 | |
| Blade Style | Opposing Bevel | |
| Blade Edge | Combo | |
| Blade Grind | Flat | |
| Blade Finish | Black (Coated) | |
| Handle Material | Overmolded Polymer | |
| Handle Finish | Black | |
| Sheath Material | Polymer | |
| Sheath Color | Black | |
| Weight | 3.20 oz | |
| Origin | USA | |
| Blade Range | 3.5-3.99 |