Leatherman's Z-Rex combines 4 emergency and tactical tools into one lightweight, intuitive and comfortable to use multi-tool. Replaceable and index friendly V-notch cutters can simply be flipped around for a fresh edge on-the-spot, or replaced completely when you're back home. Two wrenches, oxygen and Hex, are built right into the body. Leatherman uses one-strike, Tungsten Carbide for the glass breaker tool. After all, if you're down to breaking glass, this is not the time to be beating your fist against the window. 1/4in Hex Bit Driver. Features: Finger Hole. Ergo Grip. Powder-coated Aluminum Body. MOLLE Sheath.