The TAPS LH(120) 1 7/8-20 GH5 B from Field Tool Supply is a high-quality left-hand tap designed for precision threading in various materials. With a size of 1 7/8-20, this tap is ideal for creating internal threads in metal and other tough materials. It features a GH5 thread form, ensuring a smooth cutting action and excellent chip removal. Made from durable high-speed steel, this tap is built to withstand rigorous use while maintaining sharpness. Its left-hand design is perfect for applications requiring reverse threading, making it a versatile tool for machinists and engineers. This tap complies with industry standards, ensuring reliability and performance in professional settings.