HSS 1/4-18 NPT Pipe Tap and Die Set, High Speed Steel Taper Pipe Threading Tool Kit, 18 Thread Per Inch for Cutting and Repairing Internal/External Threads

• Precision NPT Threading: This 2-piece set includes one 1/4-18 NPT tap and one 1/4-18 NPT die, specifically designed for creating or repairing American National Standard Taper Pipe Threads.
• Industrial High Speed Steel: Engineered from HSS (High Speed Steel), these tools offer superior wear resistance and heat dissipation compared to standard carbon steel, ensuring clean threads on various metals.
• Accurate 18 Thread Per Inch Pitch: Featuring a precise 18 Thread Per Inch pitch, the taper design ensures a tight, leak-proof seal for plumbing, automotive, and air pressure applications.
• Versatile Material Compatibility: Optimized for processing iron, aluminum, brass, and copper. Ideal for both professional pipe fitters and DIY home maintenance projects.
• Easy Start Taper Design: Both the tap and die feature a chamfered lead to help align the tool with the workpiece, preventing cross-threading and ensuring a smooth start every time.

This HSS 1/4-18 NPT Tap and Die Set is an essential addition to any machinist's or plumber's toolbox. Whether you are chasing existing threads damaged by rust or cutting new threads in pipe fittings, these High Speed Steel tools provide the sharpness and strength required for a professional finish. The 1/4-inch nominal size with 18 Thread Per Inch conforms to standard NPT specifications, making it compatible with most North American plumbing and air-line hardware. Unlike standard carbon steel alternatives, our HSS construction maintains its cutting edge longer, even when working with tougher materials. Use with appropriate threading oil for the smoothest results and extended tool life.