The DIE RRSHS 2 3/8-20 X 4 OD from Field Tool Supply is a high-speed steel threading die designed for precision applications. With a diameter of 2 3/8 inches and 20 threads per inch, this die is perfect for creating strong threads on larger rods and pipes. The 4-inch outer diameter provides a solid grip for easy handling. Constructed from durable high-speed steel, it ensures longevity and reliability in demanding environments. This die is compatible with standard threading machines, making it an essential tool for machinists and metalworkers seeking accuracy and efficiency.