The DIE SRCP 1-11 1/2; 4 X 1 NPT from Field Tool Supply is a precision die designed for threading applications. This die features a 1-11 1/2" diameter and is compatible with 4 X 1 NPT threads, making it ideal for pipe threading tasks. Constructed from high-quality materials, it ensures durability and long-lasting performance. This die is perfect for both professional and DIY use, providing clean and accurate threads for various metalworking projects. Its design adheres to industry standards, ensuring compatibility with standard threading tools.