Irwin Tools 7005 Hexagon Taper Pipe Dies, 1/2 Inch - 14 NPT
Drill America DWTPT Series Qualtech Carbon Steel Pipe Tap, Uncoated (Bright) Finish, Round with Square End Shank, 3/4"-14 NPT (Pack of 1)
Vermont American 20799 1/4-Inch 18 NPT High Carbon Steel Pipe Hex Die