The DIE RRHSP 1-11 1/2 X 3 NPT from Field Tool Supply is a high-quality threading die designed for precision cutting of 3 NPT threads. This die features a robust construction that ensures durability and longevity, making it ideal for professional use in various applications. With a size of 1-11 1/2, it is perfect for creating clean and accurate threads in metalworking projects. The die is manufactured to meet industry standards, ensuring compatibility with standard NPT fittings. Whether you're a professional tradesman or a DIY enthusiast, this threading die is an essential tool for your toolkit.