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)
$623.00
Specifications
-
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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