Mechanical Micrometer Head Range 0 mm to 6.5 mm Resolution 0.01 mm Accuracy 0.005 mm Dimension Type Metric Mouting Hub Diameter 3/8 in Operation Type Mechanical Rotating Spindle (Yes/No) Yes Spindle Shape Flat Thimble Type Plain Includes Spanner Lock Nut Type Spindle Lock Long Form Calibration Certificate No Maximum Measurement - mm 6.5 mm Minimum Measurement - mm 0 mm Scale Finish Chrome Spindle Diameter 3.5 mm Spindle Material Steel Standards JIS B 7502