Product Description
Description | Button die |
Thread | 3/8 BSW |
Thread pitch | 16 tpi |
Thread angle | 55 degrees |
Outside diameter of die | 1" |
Material | Chrome alloy |
Brand | Bordo, Sutton |
Notes | Button Die is used for cutting a new external thread. |
About this item:
- 3/8" x 16 BSW 1" Chrome Button Die
- British Standard Whitworth (BSW).
- Split circular chrome alloy button dies are most commonly used in conjunction with a die stock handle.
- They can be used as thread chasers to clean an existing thread.
- Chrome alloy dies are not suitable for creating precision, safety or critical threads.
- The BSW 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 thread angle for BSW is 55º as opposed to 60º in Metric and Unified threads.