Stainless Steel CaliperThe vernier caliper is made of high-strength stainless steel, which is waterproof, dirt-proof and oil-proof. The jaws are aligned neatly and will not produce gaps, ensuring that there will be no data deviation during measurement. Finely polished steel and NEW processing of depth meters groove give better looking, smooth sliding, and accurate result. ACCURATE MEASUREMENTOur digital calipers glides smoothly, Measuring range: 0 -6" / 0-150mm; Accuracy: 0.001"/ 0.02mm; Resolution: 0. 0005"/0. 01mm. Powered by battery, comes with a pre-installed battery and 2 spare batteries for gift. UNIT CONVERSION & ZERO SETTINGThese Digital Calipers have a one-key button to quickly switch from inches (inch),millimeters (mm). At the same time, the smart design allows you to easily reset to zero by pressing a button and start a new measurement at any point on the scale, which is very suitable for differential measurement. 4 MEASURING MODES & LARGER LCD SCREEN Digital caliper measure indoor, outside, depth, length, width with two sets of jaw and a probe,making all your objects measurable.The digital caliper has a large easy-to-read LCD DISPLAY which is easy to use and read even under strong sunlight. It will automatically turn off after 5 minutes of non-use to save power. WIDE APPLICATIONSIt has always been used by professionals and hobbyists alike, jewelers, hobbyists, woodworkers, machinists, DIY, automotive mechanics, and more.The measuring faces adjust with a machine-grooved, knurled thumb roller that provides an easy gliding, accurate position lock for a sure adjustment.