Use a quick release screw or nut of the wrench, you must use another high strength tool screw or nut first, preliminary release after use, otherwise it will damage the wrench. When using the Speed Wrench to tighten screws or nuts, you can only use a wrench to tighten the screws or nuts quickly and preliminarily, and then use other high-strength tools for complete fixing, otherwise the wrench will be damaged. < li>Quick ratchet wrench, the so-called speed wrench is a tool specially designed to help improve efficiency work, which cannot be used to tighten or loosen screws or nuts directly. Professional Large/Medium/Small Socket Ratchet Wrench Socket Tools Two-way Quick Release Plate Carbon Steel chrome-vanadium CR-V Suitable for factories, production lines, repair shops, auto repair factories, 4S shops, personal car modification, etc. Material: Alloy steel Color: Red