PMC Lone star is the trusted leader for gage calibration and thread inspection for both new and used gages. We maintain the most complete set of API Regional and Reference Master gages in the world.
Our state-of-the art calibration laboratory in Willoughby, Ohio is accredited by A2LA to ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. Our laboratory also meets R205 – Specific Requirements: Calibration Laboratory Accreditation Program
We offer calibration and repair services for API 5B, 7-2 and 11B working and reference master gages, premium thread gages, thread height setting standards, lead setting standards, thread measuring wires, plain cylindrical plug and ring gages and ANSI/ASME thread plug and ring gages.
Need it rushed? We offer 24-hour or 48-hour turnaround on calibration orders for an additional fee.