Hi, New to the forums. I would like to know how to "reference" another sketch/feature to create a circle. I have a 3" thick part with a 3.150 hole through it. I want to create a counter bore of this hole on the back side of the part. I want to be able to reference the existing hole and make the new circle .050 larger in diameter or 3.200. Any help would be great.

Thanks,

Dave