Go/No Go Gauges

Go/No go gauges are tools used to check the tolerances of a workpiece, for example, thread depth and major diameter of a screw. Go/no go gauges are utilized to ensure interchangeability of parts between processes. Go/no go gauges rate a component as either acceptable (within tolerance), or outside of tolerance. Examples of go/no go gauges include plug gauges (used like a plug to measure hole depth), pin gauges (used for measuring very small holes), and snap gauges (incorporates four jaws that allow for single-action checking of workpiece).