Mitutoyo 293-345-30 Digimatic Micrometer, Range: 1"-2"/25.4-50.8 mm, IP65 Calibrated micrometer measures 1.0" to 2.0" (25.4 to 50.8 mm) with 0.00005" (0.001 mm) resolution and + or - 0.00005" accuracy for taking outside diameter measurements in harsh workshop conditions LCD screen displays in metric units Plastic components are oil-resistant and measuring faces are carbide-tipped for durability Electromagnetic absolute sensor with improved resistance to environmental conditions such as dirt, oil and water that can cause false readings Anti-slip finish for improved grip while take measurements Oil proof materials are used in all plastic components