The TAP RH-CI(20) 5/16-24 GH3 P by Field Tool Supply is a right-hand cutting tap designed for creating internal threads in a variety of materials. With a size of 5/16-24, this tap is perfect for standard fasteners and is made from high-speed steel (HSS) for superior strength and longevity. The GH3 classification ensures a high-quality finish and precise threading, making it suitable for both industrial and home use. Ideal for applications in automotive, machinery, and metalworking, this tap is a reliable choice for any threading project.