Ridgid 37920 Manual Pipe Threader Die, High Speed, for Stainless Steel Right Hand, 3/4-Inch,North Coast Electric,37920" /> 37920 Dies, 12R 3/4 Npt Hs Ss This item is used for Handtools & Tool Organizers ,Other Hand Tools This product manufacture by United States 3/4" Nominal Pipe Size 14 Threads Per Inch (NPT) National Pipe Taper Used for OO-R, 111-R, 12-R, O-R, 11-R Ratchet threaders Also used for 30A, 31A 3-way pipe threaders