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 95978-09 Automotive 1.4mm x 28mm Square Blade Terminal Wire Release Tool was designed to do just that, to let you separate the wires from their terminal blocks without causing damage to either. This connector release tool is made with a hardened carbon steel square tipped blade that is mounted in a comfortable anodized aluminum handle. The handle has a knurled texture for added grip and control when working on delicate electronics. Tool is designed specifically for use in command, control, and communications (C3) terminal blocks used in General Motors (GM) vehicle models.