Mechanical Outside Micrometer, Range 125 mm to 150 mm, Resolution 0.01 mm, Accuracy +/-3 micron, Long Form Calibration Certificate No, Dimension Type Metric, Jaw Depth 85 mm, Mechanical Display Type Vernier, Operation Type Mechanical, Thimble Type Ratchet, Anvil Material Carbide, Anvil Shape Flat, Lock Nut Type Lock Nut, Maximum Measurement - mm 150 mm, Minimum Measurement - mm 125 mm, Rotating Spindle (Yes/No) Yes, Spindle Diameter 0.256 in, Spindle Material Steel, Spindle Shape Flat