SPI Electronic Tube Micrometer Pin-Style Anvil Specifications Include... 0-1" / 25mm Measuring Range 0.00005" / 0.001mm Resolution 0.0001" / 0.004mm Accuracy 0.07" x 0.315" Anvil Dimensions Features include... IP65 for protection from coolant, dirt, grit, and chips. Carbide tipped spindle face ABS/INC, origin set, zero setting. Inch / Metric conversion Ratchet stop for constant feel between operators Includes Certificate of Calibration Furnished in fitted case