Tools & Gear Taps & Dies HSS Hand and Machine Taps

3046-1/4I 1/4" x 19 BSPF Intermediate HSS Tap HSS BSPF Intermediate Hand and Machine Tap. British Standard Pipe (G Series) is a pipe thread which is used mainly for mechanical coupling. The angle of thread is mainly 55° however for the US method some threads have a 60° angle. It is specified according to JIS and ISO R228. Intermediate Taps have a lead of four threads and are used in most general purpose applications to cut a thread true to a pre-drilled pilot hole. Manufactured from HSS this general purpose tap is designed for use in medium tensile materials and is for hand or general machine use.