Adjustable-Collar Mechanical Outside Micrometer Range 72 in to 80 in Resolution 0.0005 in Accuracy +/-0.00134 in Long Form Calibration Certificate No Dimension Type Inch Jaw Depth 41.142 in Mechanical Display Type Vernier Operation Type Mechanical Thimble Type Ratchet Anvil Material Carbide Anvil Shape Flat Includes Adjustable Collar Lock Nut Type Lock Nut Maximum Measurement - Inch 80 in Minimum Measurement - Inch 72 in Rotating Spindle (Yes/No) Yes Spindle Diameter 0.315 in