The TAP SP-R (020) 5/16-18 H1P 2F from Field Tool Supply is a high-performance tap designed for creating internal threads in a variety of materials. With a thread size of 5/16-18, this tap is ideal for standard fasteners and applications requiring precision. Constructed from premium steel, it ensures longevity and resistance to wear. The H1P designation indicates a specific design for optimal cutting performance, while the 2-flute design enhances chip clearance. This tap is perfect for use in automotive, manufacturing, and metalworking industries, meeting all relevant quality standards.