Mitutoyo 293-340 Digimatic Outside Micrometer, 0-1" Range, 0.00005"/0.001mm Resolution, IP65, No Output, with Ratchet Digital, single-value readout LCD with 0 to 1"/0 to 25.4 mm measuring range displays in inch and metric units for readability 0.00005"/0.001 mm resolution and 0.00005" accuracy Ratchet stop applies consistent force for repeatability between users Certified IP65 for resistance to penetration by dust and liquid up to the force of a low-pressure water jet Carbide facing on spindle and anvil provides wear resistance