for inside, outside, step and depth measurements Dial is marked with 0.1mm graduations Caliper capacity is 0 to 150mm by 0.1mm Bar scale is graduated in 1/16" and 10mm graduations Easy-to-read dial with adjustable bezel and no-glare lens Extendable depth gage for use in slots and small holes. Free wheeling friction roller advances and retracts slide. Packaged in a plastic case with hang hole