INSIZE Electronic Micrometer Features include... 2-3" / 50-75mm Measuring Range 0.00005” / 0.001mmResolution Buttons: power on/off, inch/mm conversion, absolute and incremental measurement, data set Auto power off SR44 battery, includes one spare battery DIN863, painted and insulated frame, ratchet friction thimble, spindle lock, with battery cover wrench, carbide tips Spherical anvil included allows tube thickness measurements Micrometers over 0-1”/0-25mm are supplied with a setting standard No SPC Output Supplied in fitted storage case