Product Description Master your jobs with ease and accuracy with the RIDGID Threading Machine Dies (catalog number 47750). The set includes universal pipe threading dies specifically designed for use with a range of RIDGID threading machines, such as the 504A, 711, 713, 811A, 815A, 816, 817, and 842 die heads. These dies can effectively thread pipes with diameters from 1 inch to 2 inches and produce 11-1/2 threads per inch (TPI). Constructed from durable alloy steel, they ensure longevity and reliability, making them suitable for demanding applications. The right-handed threading design is particularly effective for materials like black steel, galvanized steel, and softer metals, delivering clean and precise threads for secure connections. With user-friendly installation across multiple RIDGID die heads, these threading dies enhance efficiency and usability for plumbing and industrial tasks alike. RIDGID is a global manufacturer trusted by the skilled trades in more than 100 countries. BUILT FOR THOSE WHO KNOW. From the Manufacturer Rigid 47750 DIES, UNIV 1-2 NPT. The Rigid 47750 DIES, UNIV 1-2 NPT is a pipe for a 504 Quick Opening Threader. The Rigid 47750 DIES, UNIV 1-2 NPT is a High Speed RH. The Rigid 47750 DIES, UNIV 1-2 NPT has a National Pipe Thread of 1" to 2" and a TPI of 11-1/2.