SPI Electronic Inside Micrometer Features Include... 1" - 2" / 25 - 50mm Measuring Range 0.00005" / 0.001mm Resolution 0.00024" Accuracy Carbide measuring faces Includes Setting Ring Painted frame with heat shield Inc. / Abs. / Inch / Metric measuring Ratchet thimble Spindle lock Includes Certificate of Calibration Furnished in fitted case.
