Vernier caliper is a measuring tool for measuring length, inside and outside diameter and depth. Vernier callipers are composed of two parts, the main ruler and the sliding vernier attached to the main ruler.

Sky HAMMER vernier calipers are made of high quality stainless steel, overall heat treatment, hardness up to HRC56; Aluminum alloy cover is wear-resistant and rust-resistant, stainless steel thickened, smooth polishing ruler body; Top locking screw, more accurate and convenient measurement; Vernier caliper is a precise measuring tool. When not in use, it should be placed in a dry place to prevent corrosion. When measuring, we should first loosen the fixed screw, move the cursor can not be too hard, the contact between the two PAWS and the object to be measured should not be too tight, can not make the clamped object move in the claws; When reading, the line of sight should be perpendicular to the ruler surface. If the reading needs to be fixed, the cursor can be fixed on the ruler body with fastening screws to prevent sliding.