The Performance Tool W2935 is a must-have for any wiring installation task. Made of durable stainless steel, this wire insertion tool is designed to last for years to come. With its hollow handle and stainless steel tube, this tool makes installing wires for radios, alarms, and electronic equipment quick and efficient. The tool can also safely feed wires through firewall grommets, allowing them to be accessed from the other side. The included grommet punch simplifies the task of installing wires without the need for fishing. The comfort tri-grip handle aids in piercing firewall grommets and makes the task more comfortable and easy to complete. This tool is patented in the US under Patent Number D693201. Get your Performance Tool W2935 today for a smooth and efficient wiring installation experience!