Mitutoyo 293-340-30 Digital Micrometer, Inch/Metric, Ratchet Thimble, 0-1" (0-25mm) Range, 0.00005" (0.001mm) Resolution, +/-0.00005" Accuracy, Meets IP65 Specifications Calibrated micrometer measures 0 to 1" (0 to 25mm) with 0.00005" (0.001mm) resolution and +/- 0.00005" accuracy, for taking outside diameter measurements in harsh workshop conditions LCD screen displays in inches and metric units Plastic components are oil-resistant and measuring faces are carbide-tipped for durability Ratchet stop to help provide uniform pressure for precise, repeatable measurements Ingress Protection certified IP65 for protection against dust and water