Easy-to-Read Digital Caliper Our digital caliper quickly displays your measurements in easy-to-see LCD numerals. It measures insides, outsides, depths and steps up to 6 inches with a resolution of .0005 inch or .01mm. A 'Zero' button lets you take '2-step' measurements without calculations; another button instantly converts inches to millimeters and back again. Made of hardened stainless steel for long life. Includes battery, instructions and foam-lined case.