Digital Spherical Micrometer Range 2 in to 3 in Resolution 0.0001 in Accuracy +/-0.00020 in SPC Output No Long Form Calibration Certificate No Anvil Shape Spherical Anvil Size 0.315 in x 0.197 in Dimension Type Inch Operation Type Mechanical Thimble Type Ratchet Anvil Material Carbide Includes Setting Standard Lock Nut Type Lock Nut Maximum Measurement - Inch 3 in Minimum Measurement - Inch 2 in Rotating Spindle (Yes/No) Yes Spindle Flat Spindle Diameter 0.197 in