Performance Tool Spark Plug Crimp Tool. Perfect crimping tool for any spark plug wires. Incorporates wire cutter, terminal crimper tool and stripper in one handy tool. Black anodized finish with insulated hand grips. Crimp slot on the end of the tool secures most ignition terminals including "W" type, right angle and "High Tower" terminals. Crimps 7mm to 8.5mm ignition wire. Works with 10 to 22 gauge solderless terminals. High quality made in the USA. Comes with a lifetime warranty through the manufacturer!