IAC is since 1984 a world wide operating manufacturer of advanced geometrical measuring instruments and measuring machines for the calibration of thread gages and is creator of custom solutions for a wide range of special applications. Each member of the IAC-Team is an engineer with a sound knowledge and a wide but also deep experience in one or more of the following fields: precision engineering, optics, electronics, computer engineering. The cornerstone for successful ongoing operation was in the past and will be in the future that the company has bundled all the core disciplines together under one roof. As a laboratory specialized in dimensional calibration, certified and accredited to ISO 17025 IAC is highly competent in the production of high precision measuring instruments and -machines. One of our successful products is the Master Scanner since 1995. Many well known world wide companies are relying for the traceability of their thread gages on the high precision patented Master Scanner Technology of IAC. The Master Scanner is the only measuring machine in the world calibrating full automatic all the thread parameters of a part or a gage in just a minute including comparison of the results with the dimensional tolerances of many popular standards. The Master Scanner is ISO 17025 accredited in many countries. IAC is manufacturing two series of Master Scanners: Series MSXP from thread sizes for watch makers until mid size 60 or 100 mm Series MSXL from mid size until very large threads until 1000 mm for the oil industry or aero engines Extract of our referee&＃039;s for the Master Scanner: ABB, BMW, Festo, Volkswagen, Robert Bosch, Grohe, MG Marposs, Fraisa, Livingston, CEJ, Sulzer, Draeger, Endress+Hauser, Unimerco, Celsius, Tamburini, JBO, LMW, Corrodi, Baker Gages, Piccadilly, Viega, etc.