Package contents and sizes Includes three NPT thread-cutting dies: 1/2 NPT, 3/4 inch NPT, and 1 inch NPT. Threads conform to the NPT standard to match common pipe fittings. Key benefits — why you need this set Fast, consistent NPT threads on PVC pipe: creates clean, accurate threads to ensure reliable threaded connections without the time and effort of manual threading. Precise, burr-free cuts: the alloy cutting edge stays sharp and delivers crisp threads that reduce the need for rework or additional deburring. Drill-ready for quick work: the 1/4 inch shank fits most electric and lithium drills so you can thread pipes on job sites or at home with standard power tools. Durable construction: die bodies are made from wear-resistant alloy for long service life under normal PVC threading use. Performance and compatibility Material: alloy cutting edge and die body for hardness and wear resistance. Intended use: designed specifically for PVC plastic pipes. Produces clean, repeatable threads on PVC. Not for metal pipes: do not use on steel, copper, or other metal pipes — the tool is not rated for metal threading. Shank size: 1/4 inch for compatibility with a wide range of hand-held drills. How it solves common problems Eliminates messy, inconsistent threads that cause leaks or require rework. Speeds up installation where multiple PVC threaded connections are needed. Reduces the need for specialized threading machines by allowing efficient use with a standard drill. Typical applications Garden and irrigation systems: cut NPT threads on PVC pipes to install valves, adapters, and emitters. Home plumbing repairs and DIY projects: create threaded ends for PVC fittings in sink, drain, and outdoor water lines. Pool and spa plumbing or equipment hookups: produce reliable PVC threaded connections for pumps, filters, and pipe assemblies. Usage notes and tips Use only on PVC plastic pipes; do not attempt to cut metal threads. Secure the pipe and use steady, controlled drill speed to avoid overheating or melting the plastic. Remove and clear chips periodically to maintain a clean cutting action. Suitable for both beginners and professional users when basic drilling and safety practices are followed. Specifications Included sizes: 1/2 NPT, 3/4 inch NPT, 1 inch NPT Standard: NPT Shank diameter: 1/4 inch Material: alloy cutting edge/die body Suitable materials: PVC plastic pipe only This set provides a compact, drill-compatible solution for producing standard NPT threads in PVC pipe with durable alloy cutting edges and three commonly used sizes.