The TAPS LH(120) 1 7/8- 5 GH7 B from Field Tool Supply is a durable left-hand tap designed for precision threading. With a size of 1 7/8-5, this tap is ideal for creating internal threads in various materials, including metals and plastics. The GH7 thread form ensures optimal cutting performance and efficient chip removal, making it a reliable choice for machinists. Made from high-speed steel, this tap is built for longevity, suitable for both industrial and hobbyist applications. Its left-hand threading capability is essential for specific mechanical tasks, providing versatility in your machining projects.