The STI TAP F/S 5/16-18 GH3 B from Field Tool Supply is a high-quality tap designed for creating precision threads in metal. With a 5/16 inch diameter and 18 threads per inch, this tap is ideal for use in various applications, including automotive and machinery. Manufactured in the USA, it features a GH3 thread form, ensuring optimal performance and durability. The tap is made from premium materials, providing excellent wear resistance and longevity. It is suitable for use with a range of materials, making it a versatile addition to any tool collection.