Calipers manufactured in China

How to use a caliper? – To measure, the part is placed between the jaws of the caliper. Moving the slider, it is necessary to reduce the jaws to a snug fit to the surface of the measured part. The counting of the size on the caliper is carried out in the following order: the position of the first risks of the vernier is determined relative to the division of the metric ruler; it is determined which risk of the vernier coincides with the risk of (any) metric ruler; a reading is made by adding both readings.