M (metric)
Thread ring gauges for metric coarse thread
The metric coarse thread is the standard thread in German-speaking countries and across much of Europe. Nominal diameter and pitch are given in millimetres, and the flank angle is 60°. A ring gauge checks an external thread on the same principle as a plug gauge checks an internal one: the go ring must run on, the no-go ring must not.
VÖLKEL offers 94 versions, from M 2 x 0.4 to M 100 x 6.0.
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GO Ring gauges, 7-piece set in sturdy plastic case M 3 - M 12
Item no. 16491
€330.80
NO-GO Ring gauges, 7-piece set in sturdy plastic case M 3 - M 12
Item no. 16492
€330.80