Can anyone suggest a GD&T control to cover the following condition. Right now, the drawing carries a note, but I,m wondering if there is a better way.
1. We have two cylinders connected by a smaller cylinder similar to a dumb-bell.
2. The two outer cylinder diameters are 36.63/36.59mm.
3. There is a note stating "Both diameters must be within 0.0127mm of each other".
4. Both these diameters then establish a datum axis for the part.
Is there a geometric control that can be put on the drawing that will accomplish this, other than the note?

Norm S.
GD&T Coordinator
Delphi Automotive Systems
Lockport NY