1/4" NPTF HSS Tap Sutton
National Pipe Taper Fuel (NPTF), also called Dryseal American National Standard Taper Pipe Thread, defined by ASME B1.20.3, is designed to provide a more leak-free seal without the use of PTFE tape or other sealant compound. Taper thread diameter increases or decreases along the length of the thread.
General purpose use, materials up to approx. 1000 N/mm2 Suitable for both hand and machine operations
Taper pipe reamer recommended prior to tapping.
Threads per inch 18
Overall length 62mm
Cutting length 27mm
Drill diameter 10.8mm