Fractional-Display Digital Caliper Caliper Range 0-6 in /0-153mm Resolution 0.0005 in/0.01 mm/1/64 in IP Rating IP54 SPC Output No Accuracy +/--0.008 in +/-0.20 mm Caliper Material Carbon Fiber Absolute Positioning No Jaw Depth 1 5/8 in Long Form Calibration Certificate No Features Measures In Fractional Inches Decimal Inches or Millimeters. Can Measure Inside Outside and Step Measuraments Auto Power Off