Description
- HSS BSW Bottoming Hand and Machine Tap.
- British Standard Whitworth has a thread angle of 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.
- 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.
- Bottoming Taps are typically preceded by the use of a Taper or Intermediate Tap.
- Manufactured from HSS this general purpose tap is designed for use in medium tensile materials and is for hand or general machine use.
Options
- 3028-1/4B
- 3028-1/2B
- 3028-3/8B
- 3028-3/16B
- 3030-7/16B
- 3028-5/16B
- 3028-5/32B
Options
- 3028-1/2B
- 3028-1/4B
- 3028-3/16B
- 3028-5/16B
- 3028-3/8B
- 3030-7/16B
- 3028-5/32B
Additional Information
Optional Accessories
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Product good, delivery good
Firstly the delivery was fast and the transaction simple. Thanks. The Bosch is well built, has the power to tackle some thick growth and you can get a second battery 8amp by redemption free. Happy I selected the bundle and the dealership.
Great company, great support, great product.
As with all of the rosewood marbles tools, great quality. Now I just need to stop the students from damaging them.
No problem with the whole transaction
Good price easy transaction and good delivery
Bought as a present. Easy transaction, good delivery.
So far 5 stars. Easy to assemble and the mobility kit is great must have! Easy to adjust and use but time will tell.
Thank you for a quick & easy transaction
Wonderful fast shipping and delivery. Awesome business.
Took was exactly what I needed to complete my project. Great quality. Left a beautiful smooth hole.
Exactly what’s required to convert my lathe headstock to fit an old but reliable chuck.
Very good 👍
Item in excellent condition, good price, speedy delivery.
Arrived well packaged and works great, good doing business with yourselves
