Right hand cutting direction ; WARWICK NPTF (DRYSEAL NATIONAL PIPE THREAD) TAPS ; HSS taper pipe taps are designed for tapping ferrous and non-ferrous fittings used to connect pipes carrying fluids or gases and other places where very tight fits are needed. NPTF taper thread pipe taps do not require sealants. Dryseal is attained by metal to metal contact.
