The GR SET (84) 1 5/16-18 CL2A from Field Tool Supply is a premium set of ground thread taps designed for precision applications. Featuring taps sized 1 5/16-18, this set is perfect for creating internal threads in a variety of materials. Made from high-speed steel, these taps offer exceptional durability and performance. The CL2A classification ensures a high-quality finish for smooth operation. Ideal for both professional and DIY projects, this set is compatible with standard tapping machines and is essential for any machinist's toolkit.