Starrett 1202-12 Dial Caliper,12, Fitted Case Starrett 1202 Series Dial Calipers provide quick, accurate measurements of outside dimensions, inside dimensions, and depth. The dial caliper is the most versatile precision hand tool on the market and has been the first choice of metal working professionals for decades. This model features 0-12 range and .001 graduations. Features: Provides quick, accurate measurement of O.D., I.D. and depthSharp, clear dial graduationsSharp, black graduations on satin finished barLock screws for sliding jaw and dial bezelAdjustable bezelThumb-operated fine adjustment rollHardened stainless steel bar, measuring surfaces, rack, gears and depth rodKnife-edge contactsPositive, spring-loaded double pinion anti-backlash control 17.10 L. 5.60 W. 1.30 H.