Made of reinforced polyimide. Automatically adjusts to different wire sizes. Strips without damage or marking of conductors, slim jaw for easy access, steel side cutter. Strips and cuts wire from 24 AWG (0.2 mm2) to 12 AWG (3 mm2). Wire stop adjusts length of strip from 3/8 inch (9.5 mm) to 1/2 inch (12.7 mm).