Cuts and Strips Insulation from 14 to 24 Gauge Wires. Crimps 14 to 24 gauge insulated and non-insulated terminals. The pliers end grabs wire for twisting and holding. A convenient wire gauge key is marked on the tool. Applications: Cuts and strips insulation from 14 to 24 gauge wires. Also crimps 14 to 24 gauge insulated and non-insulated terminals. Pliers end grabs wire for twisting and holding.