Gage Blog

We're often asked to provide roughness tester standards with non-standard values for calibration of surface roughness testers, also known as profilometers. Most instruments sold by Mahr-Federal, Fowler, Mitutoyo, Phase II, Brown & Sharpe and others include a calibration specimen (typically provided with a NIST traceable certificate) in the 119 Ra microinch range (3 um), which is the industry standard. Set your instrument to this specimen and it is assumed your tester is calibrated properly. Read more