Extrema Ratio BD4 Lucky Black 4.84" N690 Folding Knife Total length (mm) 330

Total length (mm) 330

and the capability to scissor cut rope using the handle’s ergonomic finger grooves

Despite its compact dimensions

Squeezing the closed blade also extends a retractable carbide glass breaker from the butt end of the handle to break windows safely and efficiently

Extrema Ratio BD4 Lucky Black 4.84" N690 Folding Knife Total length (mm) 330BD4 LUCKY is a linerlock folder with double guards flipper opening and part serrated blade. It reminds the classic Italian style with an elegant and functional shape. Weight g.: 137 Weight oz.: 4,83 Blade Length (mm): 123 Blade Length (in): 4,84 Total Length (mm): 280 Total Length (in): 11,02 Blade Thickness (mm): 3 Blade Thickness (in): 0,11 Blade Material: BHLER STEEL N690 (58HRC) Blade Finishing: MIL C 13924 BURNISHING Main Grind: FLAT Serration