Mechanical Groove Micrometer Range 2 in to 3 in Resolution 0.0001 in Accuracy +/-0.00039 in SPC Output No Long Form Calibration Certificate No Anvil Shape Flat Anvil Size 0.630 in Dimension Type Inch Operation Type Mechanical Thimble Type Plain Anvil Material Steel Case Included Yes Case Type Plastic Features Dual Graduation Includes Hard Plastic Case Maximum Measurement - Inch 3 in Minimum Measurement - Inch 2 in Rotating Spindle (Yes/No) No Spindle Flat