Bill Reilly is president and founder of BR Metrology Inc. and CMMshop.ca, specializing in coordinate measuring machine (CMM) programming, training, and support; GD&T analysis; measurement system analysis; and calibration system support and improvement. Reilly’s career of more than 20 years in metrology includes co-founding and operating an ISO 17025-accredited contract inspection and calibration laboratory as well as a gauge and fixture shop. Reilly has written for several publications and now hosts the BR Metrology blog.