Mitutoyo Digit Counter Outside Micrometer Mechanical digit counter with 0.001" reading for quick and error-free reading Features include... 0-1" Measuring Range 0.0001" Graduation + .0001" Accuracy Measuring faces: Carbide tipped Friction Thimble Includes Certificate of Calibration traceable to NIST. Mitutoyo now is offering their most popular gages with an ISO/IEC 17025 Accredited Certificate of Calibration that is traceable to NIST. These calibrations are performed at Mitutoyo America's A2LA Accredited Calibration Laboratory in Aurora, Illinois. The Open Date Put Into Service is to be filled out by the end user when the gage is first used. The lead time on this gage is approximately 3 - 4 weeks to ship after receipt of order.