The TAPS LH 41/64-18 GH3 B from Field Tool Supply is a high-quality left-hand tap designed for precision threading in various materials. With a size of 41/64 inches and a thread pitch of 18, this tap is ideal for creating internal threads in metal and plastic applications. Made from durable high-speed steel (HSS), it ensures longevity and resistance to wear. The GH3 designation indicates a general-purpose tap suitable for a range of threading tasks. This tool is perfect for machinists and DIY enthusiasts looking for reliable performance in their projects.