Precision gauge blocks are the primary standards vital to dimensional quality control in the manufacture of parts.
GO/NO GO GAUGE
Limit Gauges For Parallel Screw Threads
The limit gauges for screw threads are provided in the same class with the spec of screw thread products and consist of GO and NOT GO size as one pair
Limit Plug Gauge
Limit plug gauge (Plain Gauge) is a pair of gauges having dimension of maximum and minimum limit size of hole to assure the interchangeability of the engagement between hole and shaft.