SPI Electronic Inside Micrometer Features Include... 2" - 3" / 50 - 75mm Measuring Range 0.00005" / 0.001mm Resolution 0.00028" Accuracy Carbide measuring faces Painted frame with heat shield Inc. / Abs. / Inch / Metric measuring Ratchet thimble Spindle lock Includes Certificate of Calibration Furnished in fitted case.
