Mitutoyo 500-505-10CAL Absolute Digimatic Caliper with Calibration, Stainless Steel Jaws, 0-18" (0-450mm) Range, 0.0005" (0.01mm) Resolution, +/-0.002" Accuracy Calibrated caliper measures 0 to 18.0" (0 to 450mm) with 0.0005" (0.01mm) resolution and + or - 0.002" accuracy, for measuring inside/outside diameters, depth, and step of items in harsh workshop conditions LCD screen displays in inches and metric units Absolute electrostatic capacitance-type linear encoder for accurate measurements and 630mm body length for measuring larger items Jaws are constructed of stainless steel for durability Includes a Mitutoyo Certificate of Calibration that the tool has been calibrated, and meets the International Organization for Standardization/International Electrotechnical Commission (ISO/IEC) 17025 International Standard for testing and calibration laboratories