LY-2048 HIGH TENSION / SPARK PLUG WIRE TERMINAL CRIMP TOOLSpark plug wire crimping tool, 8.5mm Wire Crimper; The best wire crimping tool available for making custom wire sets or wiring. Constructed with a heavy duty hardened steel frame with molded non-slip hand grips. An adjustable ratchet mechanism produces consistent factory-style high quality crimps. This special tool is an inexpensive way to make a set of custom plug wires. It provides a die to strip either 8mm heli-core or 8.5mm super conductor wire, to provide a solid terminal crimp to the wire.