Digital Hub Micrometer Range 0 in to 1 in Resolution 0.001 in Accuracy +/-0.0001 in SPC Output No Long Form Calibration Certificate No Anvil Shape Flat Dimension Type Inch Operation Type Mechanical Thimble Type Ratchet Anvil Material Carbide Features Extremely Hard and Stable One-Piece Spindle Quick and Easy Adjustment Frame Material Steel Includes Spanner Wrench Lock Nut Type Ring Maximum Measurement - Inch 1 in Minimum Measurement - Inch 0 in Rotating Spindle (Yes/No) Yes