Precision: Clear laser marking line for convenient reading, measuring faces are fully hardened, precision ground and microlap finished to assure exceptionally accurate measuring. Measuring range is about 5mm~30mm, accurate is 0.01mm.
Premium Stainless Steel Quality: This inside micrometer kits is made of superior stainless steel with chrome plated surface, wear-resisting and durable, not only bring you a better experience but also provide a longer service time.
Application: The internal diameter gage gauge is great for measure the hole, groove depth and height of the workpiece and etc.
Zeroing: Clean the surface of measuring anvil heads with a soft cloth, then rotate measuring device to make two measuring surface contact. If two zero lines of differential sleeve and fixed barrel do not alignmen
Package List: You will receive 1x inside micrometer+1x wrench+1x calibration ring+1x wooden packing box.