Mechanical Screw Thread Micrometer, Range 0 in to 1 in, Resolution 0.0001 in, Accuracy +/-394 micronin to +/-630 micronin, SPC Output No, Long Form Calibration Certificate No, Anvil Shape Flat, Anvil Size 0.315 in, Dimension Type Inch, Operation Type Mechanical, Thimble Type Ratchet, Anvil Material Steel, Lock Nut Type Lock Nut, Maximum Measurement - Inch 1 in, Minimum Measurement - Inch 0 in, Rotating Spindle (Yes/No) No, Spindle Flat, Spindle Diameter 0.315 in, Spindle Material Steel