Goliath 3/4" x 10 TPI BSW Bottom Machine Nut HSS Bright Tap - L18AK3
Available
This Goliath BSW is the Bottom Machine Nut HSS Tap.
Goliath BSW tap and die sets cut British Standard Whitworth threads, the original imperial thread standard, for maintenance and repair of older British equipment.
Where this product is used
Goliath bsw tap and die set products are used across engineering workshops, production machining, and industrial maintenance programs.
- Cutting British Standard Whitworth threads for repair and maintenance of older British equipment.
- Heritage engineering, classic vehicle restoration, and vintage machinery maintenance.
- Toolrooms holding the full range of imperial British thread standards.
Key specifications
| Specification | Detail |
|---|---|
| Model | BSW |
| Diameter | 1/8 |
| Drill Diameter | 2.55mm |
| Thread Per Inch (TPI) | 40 |
| No. Of Flutes | 3 |
| Tolerance | CL2 |
| Length Overall (mm) | 89 |
| Thread Form Type | BSW |
| Material Grade | HSS |
Selecting the right option
BSW (Whitworth) sets suit heritage engineering and vintage machinery maintenance. Confirm the thread standard is BSW — Whitworth and BSF are different thread forms with different pitches. Select the set covering the size range required for your maintenance program.
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Goliath BSW Bottom Machine Nut HSS Tap: 3/4"
SKU: A0197934 | Model: L18AK3
Diameter 3/4". Goliath BSW Bottom Machine Nut HSS Tap - Long Reach
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 workpiece 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.