Bordo 1-1/4″ x 11 BSPF HSS Tap Set

Description

1-1/4″ x 11 BSPF HSS Tap Set
HSS BSPF Hand and Machine Tap Set.
British Standard Pipe (G Series) is a pipe thread which is used mainly for mechanical coupling. The angle of thread is mainly 55º however for the US method some threads have a 60º angle. It is specified according to JIS and ISO R228.
Bottoming Taps have a lead of two threads and are used to ensure minimum thread run-out when tapping to the bottom of a blind hole.
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.
Taper Taps have a lead of eight threads and are used as a starting tap in difficult or high precision holes.
Manufactured from HSS this general purpose tap is designed for use in medium tensile materials and is for hand or general machine use.
Category: Bordo, Taps & Dies, HSS Hand and Machine Taps, HSS Tap BSPF (G Series)
Drill Diameter (mm): 39.5
Overall Length (mm): 119
Pitch (tpi): 11
Lead: Set