For over 50 years Dorsey Metrology International has been manufacturing and selling precision measuring equipment such as dial indicators, bore gages, large diameter gages and snap gages,
just to name a few. Their ultra high amplification dial indicators offer unmatched accuracy and repeatability.
Since 1986 Dorsey has been perfecting their high quality optical comparator line. And like all of Dorsey's products, their comparators are American made.