I am trying to position a 0.125" hole, using the Hole Wizard, on the edge of a disc so that it runs dead center through the existing hole.  No matter what I do in a 3D sketch I can only move the position of the new hole's origin and can't creat a relationship so that it is fixed on the center of the edge face and centered with the existing hole..  Photo and part attached..  Thanks in advance as I am a new user.