6 Piece High Speed Steel Npt Pipe Tap Set, 1/8, 1/4, 3/8, 1/2, 3/4 And 1 In Wooden Case, Dwths1/8-1Set

6 Piece High Speed Steel Npt Pipe Tap Set 1/8 1/4 3/8 1/2 3/4 And 1 In Wooden Case Dwths1/8-1Set6 Piece High Speed Steel Npt Pipe Tap Set 1/8 1/4 3/8 1/2 3/4 And 1 In Wooden Casenational Pipe Taper Taps (Npt) Are Appropriate For Threading A Wide Variety Of Materials Both Ferrous And Non-Ferrousthe Nominal Size Of A Pipe Tap Is That Of The Pipe Fitting To Be Tapped Not The Actual Size Of The Tapthe Thread Tapers 3/4 Of An Inch Per Footall Pipe Taps Furnished With A 2-1/2 To 3-1/2 Thread Chamgernpt Threads Require The Use Of A Sealer Like Teflon Tape Or Pipe Compound.