Cuts internal threads in pipes, tapered at a rate of 3/4 in/ft, nominal size of the tap is that of the pipe fitting being tapped, four flutes. Used in applications such as pipe fittings.
TARAUD DE TUYAU BISEAUTE 1 PO-11-1/2 NPT
MACHOS CONICOS P/TUB ROSC 1-11-1/2NPT