Dial Indicator - Lug Back, Range 0 in to 0.125 in, Graduations 0.0005 in, Accuracy +/-0.0005 in, Long Form Calibration Certificate No, AGD Number AGD 1, Back Type Lug, Dial Color Green, Dial Reading 0-25-0, Dial Size 1.75 in, Dimension Type Inch, Maximum Measurement - Inch 0.125 in, Minimum Measurement - Inch 0 in, Number of Indicators 1, Operation Type Plunger, Range per Revolution 0.05 in, Reading Balanced, Bearing Type Jeweled, Bezel Lock Yes, Contact Point Dia. 0.25 in