Vernier Caliper Auxiliary Clip for Radius/Diameter Measurement

For measuring smaller objects, it is recommended to use the 1x auxiliary tool, and the vernier caliper reading will be the radius value of the measured object.

For measuring larger arcs, it is recommended to use the 10x auxiliary tool, and 10 times the reading will be the radius of the measured item. (Because the caliper's error is also magnified 10 times, it is only suitable for rough measurements and as a reference value.)