Description
- 1/2" x 12 BSW Chrome Tap Set
- Chrome Alloy BSW Hand Tap Set.
- Used as thread chasers to clean an existing thread.
- They can also be used to create a new female thread in non-ferrous metals and plastics.
- Chrome alloy taps are not suitable for creating precision, safety or critical threads.
- 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.
- The major diameter of external thread and pitch are specified by a simple numerical value (most commonly measured in millimetres).
- 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.
- Taper Taps have a lead of eight threads and are used as a starting tap in difficult or high precision holes.
- 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.
- Bottoming Taps are typically preceded by the use of a Taper or Intermediate Tap.
Additional Information
Optional Accessories
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
hidden
Shop Spring Sale
You may also like
Recently viewed
Let customers speak for us
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
