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M (metric)

STI thread 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°. STI gauges check the oversized thread that later receives a thread insert. It is a series of its own, because the receiving thread is larger than the working thread that follows.

VÖLKEL offers 35 versions, from M 2 x 0.4 to M 52 x 5.0.

Application advice for VÖLKEL threading tools
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