1/4" NPT HSS TAP SUTTON
Taper thread, National Pipe Thread Taper (NPT), whose 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