Mitutoyo Deep Throat Digital Thickness GageThese thickness gages offer a quick and efficient means of inspection with their convenient grip handle, thumb trigger and spring loaded spindle.Features include... Measuring Range: 0-.47" / 0-12mm Resolution: .0005" / .01mm Contact Point Diameter: 0.400" Ceramic Contact Points Throat Depth: 4.7" PLEASE SELECT CALIBRATION OPTION FROM PULL DOWN MENU. Standard Calibration Usually takes about 3-4 Weeks to ship from Mitutoyo. 5-Day Calibration Ships out within 1 Week after receipt of order. 1-Day Calibration Ships out in 1 Day after receipt of order. 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 after receipt of order. The Open Date Put Into Service is to be filled out by the end user when the gage is first used.