Mechanical Interchangeable-Anvil Outside Micrometer Range 36 in to 40 in Resolution 0.001 in Accuracy +/-0.00087 in SPC Output No Long Form Calibration Certificate No Anvil Shape Flat Anvil Size 0.315 in Dimension Type Inch Operation Type Mechanical Anvil Material Carbide Features Interchangeable Anvils Includes Setting Standard Lock Nut Type Lock Nut Maximum Measurement - Inch 40 in Minimum Measurement - Inch 36 in Rotating Spindle (Yes/No) Yes Spindle Flat