Vernier caliper(VERNIER CALLIPER)It is a measuring tool for measuring length, inner and outer diameters, and depth. A vernier caliper consists of a main ruler and a vernier attached to the main ruler that can slide. The main ruler is usually measured in millimeters, while the vernier has10、20or50According to different divisions, vernier calipers can be divided into ten division vernier calipers, twenty division vernier calipers, fifty division vernier calipers, etc. The vernier is10There are divisions9mm,20There are divisions19mm,50There are divisions49mmThe main ruler and vernier of a vernier caliper have two sets of movable measuring claws, namely an inner measuring claw and an outer measuring claw. The inner measuring claw is usually used to measure the inner diameter, while the outer measuring claw is usually used to measure the length and outer diameter.
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