Item Horizontal Dial Test Indicator, Range 0 in to 0.03 in, Graduations 0.0005 in, Long Form Calibration Certificate No, Contact Point Dia. 0.03125 in, Dial Color White, Dial Reading 0-15-0, Dial Size 40 mm, Dimension Type Inch, Included Certification Inspection Certificate, Includes Dovetail Mount Attachments Yes, Maximum Measurement - Inch 0.03 in, Minimum Measurement - Inch 0 in, Number of Indicators 1, Operation Type Lever-Style, Range per Revolution 0.03 in, Series Mitutoyo 513 Long Stylus Dial Test Indicator and set contains comparative instruments used to check your readings against known standards. Also use to zero-out set-ups.