The STI TAP RH 5/16-18 GH4 B from Field Tool Supply is a specialized tap designed for precision threading with a 5/16-18 thread size. Made from high-speed steel, this right-hand tap offers durability and effective cutting performance. The GH4 classification indicates its suitability for applications requiring tighter tolerances. Manufactured in the USA, this tap is ideal for creating strong, reliable threads in various materials, including metals and plastics. Perfect for professionals and DIY enthusiasts, it is an essential tool for ensuring accurate and secure fastenings.