The TAPS LH(020) 5/16-18 GH1 B is a left-hand tap designed for creating internal threads in various materials. With a thread size of 5/16-18, this tap is ideal for applications requiring reverse threading. Constructed from high-speed steel, it provides excellent durability and cutting performance. The GH1 designation indicates a general-purpose tap suitable for a range of materials, including aluminum and mild steel. This tap is compatible with standard tapping equipment and meets ANSI standards for quality and performance. Perfect for machinists and DIY enthusiasts, the TAPS LH(020) 5/16-18 GH1 B is a reliable choice for threading tasks.