Whitworth screw pitch gauge set and screw flank angle gauge
A Whitworth screw pitch gauge set marked No 637 and a screw flank angle gauge of 55 degrees, marked No 651, both made by Brown and Sharpe.
Details
- Category:
- Hand and Machine Tools
- Object Number:
- 1929-803/36
- type:
- gauge
- credit:
- Buck and Hickman Limited