When in Doubt, use Runout! - 2018 (#1A)
(In accordance with the ASME Y14.5-2018 standard)
PDF is Available with GD&T Reference Center Subscription.
In our June 1997 Tip "When in Doubt, use Runout!" we discussed the difference between concentricity and runout. Concentricity has been removed from the 2018 standard. In previous editions, it was used to control the derived median points for coaxial features. It was frequently misused (in parts A,B,C, & D, all the external features have …
