Goliath Threading Tools 1″ x 8 BSW Intermediate Machine Nut HSS Tap – Goliath

Description

1″ x 8 BSW Intermediate Machine Nut HSS Tap – Goliath
HSS Bright Finish BSW Machine Nut Intermediate Tap.
Machine Nut Taps are used where a long shank is needed and are available in Taper, Intermediate, and Bottoming leads.
To ensure easy and precise use the Machine Nut Tap Taper lead has a unique, very long entering chamfer.
This makes aligning the cutting end with the work piece simple.
Ideal for tapping nuts, small quantities made from tough steel such as stainless steel as well as mild steels, or for rethreading rusty or worn threads.
Alternatively, the Intermediate and Bottoming leads are ideally suited to long reach threading applications where the thread needing to be tapped or cleaned is beyond the reach of a standard tap.
We recommend the Intermediate lead Machine Nut Tap for long reach through-hole applications and the Bottoming lead for long reach blind hole applications.
British Standard Whitworth angle of thread is 55 degrees as opposed to 60 degrees in Metric and Unified threads.
This thread form was developed by Sir Joseph Whitworth in 1841.
The thread form has rounded roots and crests and is specified in BS84:1956.
Category: Goliath Threading Tools, Taps Hand & Machine, HSS Long Reach (Machine Nut) Taps, BSW
Drill Diameter (mm): 22
Overall Length (mm): 279
Pitch (tpi): 8
Lead: Intermediate