Mitutoyo Electronic Point Micrometer w/ SPC Output Pointed spindle and anvil for measuring the web thickness of drills, small grooves, keyways, and other hard-to-reach dimensions. Features include... 2-3" / 50-75mm Measuring Range 0.00005" / 0.001mm Resolution + .0001" Accuracy 30° Points IP65 water / dust protection The measuring points (carbide-tipped) have approximately 0.3mm / .012 radius SPC Output With Ratchet Stop for constant force Supplied in fitted plastic case