Mechanical Outside Micrometer Range 3 in to 4 in Resolution 0.0001 in Accuracy +/-0.0001 in Long Form Calibration Certificate No Dimension Type Inch Included Certification Inspection Report and Declaration of Conformity Mechanical Display Type Vernier Operation Type Mechanical Thimble Type Fixed/Friction Anvil Material Carbide Tipped Anvil Shape Flat Case Included Yes Includes Fitted Carrying Case Lock Nut Type Lever Maximum Measurement - Inch 4 in Minimum Measurement - Inch 0 in