I have received so much help here in just a couple of tries I thought I would try again (and hope that one day I know enough to repay all of the assistance I am receiving by helping others).

I have a hole I need to keep t within +.000 -.001

I predrilled a hole an then set up my milling operation to mill my hole to size. I want the EM to come down in the center of the hole but no matter what I try it plunges at the edge. I have tried creating a point in the center, tried creating 2 holes and setting up a pocket operation.

Is there any way to tell BC where I want my plunge point to be for a mill hole operation? Geometry start point just changes the direction....