Precision Threading: These pipe threading dies are ideal for NPT 1 to 2-inch threads, processing a wide range of pipes. Please check compatibility with your equipment before purchase High-Quality Material: Made from durable HSS (high-speed steel) with high hardness, toughness, wear resistance, and heat tolerance, these metal threading dies maintain stable performance in high-demand environments, reducing downtime and replacement costs. Wide Compatibility: These NPT pipe dies are designed for integrated pipe threading machines, ensuring an ideal fit and reducing replacement costs. Precision Cutting: Sharp and evenly spaced cutters ensure no metal shavings, improving thread accuracy and quality for leak-free connections with pipe threading dies. Easy to Replace: No complex stepsjust insert the replacement dies for pipe threading into the threading machine following the numbered sequence, making it quick and easy to boost production efficiency.