Which type of tool is essential for stripping insulation from wires?

The essential tool for stripping insulation from wires is the wire stripper. This tool is specifically designed to remove the protective outer layer of insulation from electrical wires without damaging the conductive metal beneath. It features various sizes of notches that correspond to different wire gauges, allowing the user to select the appropriate size for the wire being stripped. Proper stripping is crucial because it ensures a clean connection point for making electrical joints and prevents potential issues such as shorts or circuit failures.

While other tools listed may serve important functions in electrical work, they do not specialize in insulation removal. Cable cutters are intended for cutting cables and cannot effectively strip insulation. Screwdrivers are used for fastening and loosening screws, while crimping tools are utilized for attaching connectors to wire ends. Thus, for the task of removing insulation, the wire stripper is the correct and necessary choice.