Mechanical Micrometer Head Range 0 mm to 25 mm Resolution 0.01 mm Accuracy 0.003 mm Dimension Type Metric Mouting Hub Diameter 1/2 in Operation Type Mechanical Rotating Spindle (Yes/No) Yes Spindle Shape Flat Thimble Type Ratchet Case Included Yes Includes Hard Plastic Case Long Form Calibration Certificate No Maximum Measurement - mm 25 mm Minimum Measurement - mm 0 mm Spindle Diameter 1/4 in Spindle Material Carbide