Titan Tools 23173 Electronic Digital Caliper with Fractional Display Use for inside, outside, step, depth and scribe measurements from 0" to 6" (0mm to 150mm) Easy to read large LCD display of decimal inch, millimeter, and fractional increments Zero positioning in all measuring types and automatic shut off to conserve battery life Fine adjustment thumbwheel, lock knob and stainless steel components Comes in a protective storage case and includes 2 batteries