4"-8 NPT National Pipe Taper Pipe Tap, High Speed Steel

Model #: NPT-4

Price: $680.80

Description: 4"-8 NPT HSS Pipe Tap 0344-0063

• Size:: 4" - 8 National Taper Pipe
• High Speed Steel
• NPT=3/4" per foot taper.
• Ground Threads.
• Makes a thread for standard "4" Pipe" - the actual thread dimension is greater than 4".

The "pipe size" listed (such as 1/2"-14) gives the inside diameter of the pipe this tool is intended to be used for, followed by the threads per inch the tap will cut.