The TAPS LH(040) 5/8-11.5 GH3 P from Field Tool Supply is a specialized left-hand tap designed for threading 5/8 inch diameter holes with an 11.5 threads per inch (TPI) specification. Made from high-speed steel, this tap offers exceptional durability and precision for various metalworking tasks. The GH3 tolerance ensures accurate threading, making it suitable for both industrial and DIY applications. Its left-hand threading capability is ideal for specific projects requiring reverse threads. This tap is essential for machinists looking for reliable and efficient threading solutions.