Mechanical Depth Micrometer Range 0 in to 1 in Resolution 0.001 in Accuracy +/-0.00012 in Long Form Calibration Certificate No Base Length 2 1/2 in Base Style Full Dimension Type Inch Included Certification No Mechanical Display Type None Number of Measuring Rods 1 Operation Type Mechanical Rod Diameter 0.177 in Anvil Material Steel Anvil Shape Flat Case Included Yes Features Top-Installing Rods for Increased Stability Includes Rods with Flat End Lock Nut Type Screw