DIATEST Hermann Költgen GmbH, Germany, is certified for: DIN EN ISO 9001:2000

Welcome to DIATEST in the United States of America

DIATEST manufactures high-precision indicating bore gauges with a repeatability of up to 0,001 mm resp. 0,00005” and supplies partners and companies in over 35 countries worldwide.

Our partner for the United States is DIATEST USA who has been a reliable and competent agent for many years now.

Through a close proximity to our clients, short delivery schedules and expert local service, standard and special designs for measuring tasks can be solved quickly and accurately. Ongoing product development in line with the requirements of the global market continues to bring new solutions and improvements. All bore gauges are manufactured in accordance with DIN EN ISO 9001.

Our clients are manufacturers from all over the globe, who demand a high standard of accuracy and quality, for example the aviation and aerospace industry, the automobile and hydraulics industry, as well as general engineering.