The Ultramarine by Extrema Ratio is a high end dive knife crafted for elite military service. The thick Bohler N690 stainless steel blade is coated with a Mil-C-13924 finish for a non-reflective, corrosion resistant finish. The dagger blade features partial serrations and an integrated strap cutter. Nylon wrapped handle provides a slip resistant grip. Included is scuba ankle sheath for ease of access.
Extrema Ratio Ultramarine Fixed Blade Knife (5.875" Black)
Out of Stock
MSRP: $791.95
Our Price: $623.00
3,115
Out of Stock
Item #BHQ-46535
4 interest free payments of $155.75* with 
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- Overall Length: 11.625"
- Blade Length: 5.875"
- Blade Thickness: 0.25"
- Blade Material: Bohler N690
- Hardness: 58 RC
- Blade Style: Dagger
- Blade Grind: Flat
- Finish: Black
- Edge Type: Serrated
- Handle Length: 5.75"
- Handle Material: Nylon
- Color: Black
- Weight: 13.90 oz.
- User: Right Hand, Left Hand
- Sheath: Nylon
- Knife Type: Fixed Blade
- Brand: Extrema Ratio
- Model: Ultramarine
- Country of Origin: Italy
- Best Use: Diving, Tactical
- Product Type: Knife
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