Close a jump ring and measure its outer diameter.
We recommend measuring the OD at the
cut line (kerf)
and then rotating the ring 90 degrees and measuring the OD perpendicular to the cut line.
We also recommend measuring multiple rings instead of just one.
Click Next when you've entered as many measurements as you'd like.
When measuring, don't squeeze too hard, just apply enough pressure until the ring
won't fall out of the caliper jaws.