In extreme close-quarter encounters where a suspect is attempting to take an officer’s handgun, or an officer cannot access his handgun, the TDI knife is available as a “last option” knife. When worn on the pant belt the entire unit – knife and sheath – is well concealed. Designed by John Benner, founder and owner of Tactical Defense Institute. A partially serrated edge makes cutting looped and synthetic materials a breeze. This knife features a coyote brown handle scales and sheath and reversible black metal belt clip.