MikronTec M39 x 4 Ring Thread Gauge Ring Gauge, 4mm Pitch Diameter

The MikronTec thread ring gauge is a gauge used to test a threaded shaft. The Go gauge must be able to be screwed on the threaded shaft without excessive force. The No-Go gauge (indicated in red) must not fit on the test item. These gauges are used to check whether the actual thread of a test item is within a specified target range.

Conforms to DIN13 - ISO 1502
Right handled
High precision and fast μm production