Starrett 1202F-6 Fractional Dial Caliper, 6, w/Case Starrett 1202F Series Fractional Dial Calipers show measurements as fractions on the yellow outer scale with 1/64th inch graduation, and decimal measurements on the white inner scale with 1/100th inch graduations. Provides quick, accurate measurement of outside dimensions, inside dimensions, and depth. This model features 0-6 fractional range. Features: Provides quick, accurate measurement of O.D., I.D. and depth1/64 graduations on the yellow outer scale, and .01 on the white inner scaleShows measurements as fractions Lock screws for sliding jaw and dial bezelAdjustable bezelThumb-operated fine adjustment rollCovered rack depth rod Hardened stainless steel bar, measuring surfaces, rack, gears and depth rodKnife-edge contactsPositive, spring-loaded double pinion anti-backlash control 10.20 L. 3.80 W. 1.30 H.