The TAP RH-U(20) 5/16-18 GH3 B by Field Tool Supply is designed for precision threading in various materials. This right-hand tap features a 5/16-18 thread size, making it versatile for multiple applications in metalworking and fabrication. Constructed from high-speed steel, it provides excellent durability and performance. The GH3 tolerance ensures a snug fit, suitable for both industrial and home projects. Ideal for use with standard tap wrenches, this tap is perfect for automotive repairs, machinery assembly, and other threading tasks.