The DIE RRSHS 2 1/8-18 X 4 OD from Field Tool Supply is a precision round die designed for threading applications. This die features a 2 1/8" diameter with an 18 threads per inch (TPI) specification, making it suitable for various metalworking tasks. Made from high-speed steel, it offers durability and reliability in demanding environments. The 4" overall diameter allows for easy handling and compatibility with standard threading tools. Ideal for creating clean, accurate threads on rods and bolts, this die meets industry standards for performance and quality.