Mechanical Outside Micrometer Range 0 in to 1 in Resolution 0.0001 in Accuracy +/-0.0001 in Long Form Calibration Certificate No Dimension Type Inch Included Certification Starrett SLC - Standard Letter of Conformance Mechanical Display Type Vernier Operation Type Mechanical Thimble Type Friction Anvil Material Carbide Anvil Shape Flat Case Included Yes Case Type Plastic Case Frame Material Steel Includes Key Spanner Fitted Carrying Case Lock Nut Type Ring