Mitutoyo 64PKA076BCAL Digimatic Tool Kit with Calibration, 0-1"/0-25 mm Range Digimatic Ratchet Micrometer, 0-6"/0-150 mm Range Digimatic Caliper, Mahogany Case Calibrated micrometer (293-340CAL) with a measurement range of 0 to 1" (0 to 25.4mm), resolution of 0.00005" (0.001mm), and an accuracy of + or - 0.00005", for taking outside diameter measurements in harsh workshop conditions LCD screen of micrometer displays in inches and metric units, plastic components are oil-resistant, and measuring faces are carbide-tipped for durability Calibrated caliper (500-196-30CAL) with a measurement range of 0 to 6" (0 to 150mm), resolution of 0.0005" (0.01mm), and an accuracy of + or  0.001", for measuring inside and outside diameters, depth, and step of items in harsh workshop conditions LCD screen of caliper displays in inches and metric units, and thumb roller and Absolute electrostatic capacitance type linear encoder for accurate measurements Includes a Mitutoyo Certificate of Calibration that these tools have been calibrated, and meet the International Organization for Standardization/International Electrotechnical Commission (ISO/IEC) 17025 International Standard for testing and calibration laboratories