When working with such sensitive measuring instrument like micrometer, it is necessary to hold it with two hands — and what to hold on to what is measured! A kind of third hand may be that the bracket on the stand that allows you to quickly secure the MIC, freeing your other hand for holding the measured part.
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Something I have done for drawings and diagrams, published in the journal under the heading "Club home of the masters". In one of the rooms was a note on the machine to edit used caps...
