A wire stripper is a tool used to remove insulation from an electrical cable or wire. It usually consists of a blade or knife that is inserted into the insulated area of the cable and then passed around the cable to remove the insulation. This allows the bare wire to be exposed so it can be used for electrical connections or repairs. Wire strippers are available in a variety of styles and can be customized for different cable diameters and insulation types. They are an indispensable tool for electricians and craftsmen who frequently work with electrical cables.