As many technicians know, automotive electrical terminal blocks are designed to hold wires amid the bumps and vibrations experienced in modern cars and trucks and not let go or loosen so when it comes time to replace or repair those blocks or wires, they never want to let go and special tools are needed to separate them. The STEELMAN 95978-01 Automotive PCM / Transmission Wiring Harness and Terminal Tool was designed to do just that, to let you separate the wires from their terminal blocks without causing damage to either. This connector pin release tool is made with a flat, chrome plated steel blade that is mounted in a comfortable anodized aluminum handle. When dealing with power-train control module and transmission wiring harness wires, the handle has a knurled texture for added grip and control. Tool is designed specifically for use with PCM / transmission harnesses used on Chrysler, Hyundai, Kia, and Mitsubishi vehicles and may not work on those of other manufacturers.