German made screw pitch gauge. Designed to check internal and external thread profiles. Gauge has a lock nut which allows any leaf to be locked in place.
Description
German made screw pitch gauge. Designed to check internal and external thread profiles. Gauge has a lock nut which allows any leaf to be locked in place.
Specifications
Size/weight/qty28 Blade- Whitworth 55 deg. Range 4 to 62 tpi.