The Rothenberger USA NPT 1"-2" HSS Dies are essential for threading pipes in plumbing applications. Made from high-speed steel (HSS), these dies ensure durability and precision. Designed for NPT (National Pipe Taper) threads, they are compatible with various pipe sizes from 1 inch to 2 inches. The dies feature a robust construction that meets industry standards, ensuring reliable performance in both professional and DIY settings. Ideal for use with Rothenberger threading machines, these dies are a must-have for any plumbing toolkit.