The TAP RH-U(72) 1 1/8-12 GH4 B from Field Tool Supply is a high-quality right-hand tap designed for precision threading. This tool features a 1 1/8" diameter and 12 threads per inch, making it ideal for various metalworking applications. Constructed from durable materials, it ensures longevity and reliability in demanding environments. The GH4 B designation indicates its specific design for optimal chip removal and cutting efficiency. This tap is compatible with standard threading systems and meets industry standards for performance and safety.