For Kimber 1911 .45 9mm 3" barrel Ultra II Carry, Raptor, Raptor, Aegis, Crimson, CDP Officers Tool Tear down Tool - Short - by NDZ Performance allows for easy gun tear downs without fumbling or trying to find the small guide rod through hole will not scuff or damage finish like stock steel tool easily snaps in place, also no need to center it like stock allen key type wrench