Snap Gauges or Gap Gauges
A snap gauge usually consists of a plate or frame with a parallel faced gap of the required dimension. In these gauges the gauging anvils can be adjusted end-wise to suit any particular limit dimension required.
Snap gauges are used for both cylindrical as well as non cylindrical work as compared to ring gauges which are conventionally used only for cylindrical work.
Types of Snap Gauges
- Double Ended Snap Gauges
- Progressive snap gauges