Millimeters & Centimeters Sliding Dial Caliper for Jewelers, Machinists, Electronics, Auto Mechanics & Measuring. This is a new sliding dial caliper. It has finely honed jaws for exacting inside, outside and depth measurements. Has a large 1 1/2" (38 mm) diameter dial that makes it easy to read graduations. This is economical and lightweight. Has a thumb screw adjustment for easy calibration and a thumb roller with lock for ease of use. Measures in millimeters and centimeters. Graduated in 1 mm increments. It measures up to 150 mm or15 cm. The caliper measures approximately 9 5/16" x 3" (236.5 x 76 mm) We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.