A wire stripper is a hand-held tool used to remove the insulation from electrical wires. It typically features a set of sharp blades that can cut through the plastic or rubber coating without damaging the metal wire inside. This tool is essential for electricians and DIY enthusiasts when preparing wires for connections. Wire strippers come in various designs, including manual and automatic types. Some models have multiple holes for different wire gauges, allowing users to strip various sizes of wire easily. Proper use of a wire stripper ensures safe and effective electrical connections, which is crucial for devices and systems involving electricity, such as circuits and electrical appliances.