Mechanical Micrometer Head, Range 0 in to 1 in, Resolution 0.001 in/ 0.0001 in, Accuracy 0.0001 in, Dimension Type Inch, Mouting Hub Diameter 3/8 in, Operation Type Mechanical, Rotating Spindle (Yes/No) Yes, Spindle Shape Spherical, Thimble Type Ratchet, Includes Spanner, Lock Nut Type Spindle Lock, Long Form Calibration Certificate No, Maximum Measurement - Inch 1 in, Minimum Measurement - Inch 0 in, Scale Finish Chrome, Spindle Diameter 6.35 mm, Spindle Material Steel, Standards JIS B 7502. This item has been restricted from sale in the following state (s): []