Mitutoyo 1" Dial Indicator with 0.0005" Graduations Mitutoyo's dial indicators now offer users more stability and longer life, thanks to advances to the inner workings of the rack and pinion gear system. Shock resistance is increased with a more robust gear train, while contamination resistance has been dramatically increased with a tighter seal around the bezel and frame, and the elimination of a lifting lever screw. Features include... 0-1" Measuring Range 0.05" Range per Revolution 0.0005" Graduations 0-50 Dial Reading Lug Back