Spi 20-937-9, Groove Micrometer
Features: Flanged spindle for measuring width, bore depth, and location of grooves Non-rotating spindle with bi-directional ratchet stop
Furnished in fitted case.
Graduation 0.001 inch /0.01 mm Accuracy plusmn 0.001 inch /0.01 mm Parallelism 0.001 inch /0.01 mm Short Form Certificate of Calibration included
Two separate laser engraved graduations on barrel top and bottom