Extrema Ratio Ultramarine NEDU

ULTRAMARINE N.E.D.U is a variant developed and purchased by the U.S.A. Naval Experimental Diving Unit. Conceived of as a work tool, not as a fighting knife, it was accordingly designed with a tipless blade. For greater quickness in drawing, the sheath comes without an upper flap. The inside-hilt blade tang undergoes a special cataphoresis process to prevent corrosion. The knife is supplied in a case with: a cordura fabric ankle sheath, two BELT-CLIPs allowing for separate use of the inner hard sheath, and a blade maintenance spray-can.
TECHNICAL SHEET
Weight g.:360
Weight oz.:12,7
Blade Length (mm):136
Blade Length (in):5,4
Total Length (mm):274
Total Length (in):10,8
Blade Thickness (mm):6,3
Blade Thickness (in):0,25
Blade Material:BöHLER N690 STEEL (58HRC)
Blade Finishing:MIL-C-13924 BURNISHING
Main Grid:FLAT
Serration (in):2,8
Serration (mm):70
Handle Material:NYLON