Breacher bars are like the much cooler older brother to the swiss pocket knife. In fact, there's little comparison between the two. A breacher bar, which is a rectangular shaped knife, is used by SWAT teams and bomb techs to easily and quickly cut through and pry open just about anything. But safety comes first.
Check out this survival training video to learn how to wrap a 550 cord, or a parachute cord, around the handle of a breacher bar for enhanced grip. You'll see how to tie off a wrist-carry lanyard end and how to tie a barrel knot.