The RCBS Electronic Digital Caliber provides an instant reading and is very easy to use. It has a hardened stainless steel body for prolonged tool life and easily switches from inches to millimeters with the touch of a button. The caliper offers a range of 0-6”/0-150mm with an accuracy +/- 0.001”/ 0.02mm. The resolution is 0.0005”/0.01mm. Large, easy to read numbers, reduces error—eliminating guessing. The caliper adjusts to zero at any position, measures internal, external, depth and step dimensions, the jaw depth measures 1-1/2” outside, 5/8” inside, and the lock holds slide in position for measuring constants. The battery is included and features a low battery indicator. A fitted plastic storage case rounds out this offering.