Others may have a better way, but this has worked for me for many years. Mark the entry location with a small punch to get a dimple to start the drill. Mark and punch the exit location the same way. I have a piece of ¼” drill rod about an inch long with a point ground on one end, this is mounted vertically in the drill press vice. Put the proper size drill bit in the chuck and align it by moving the vice so, when the chuck is lowered, the point of the drill exactly meets the point of the drill rod in the vice. Clamp the vice in this position. Now, mount the stock with the dimple at the exit point sitting on the point of the rod in the vice. Start the drill at the entry point and run through. Since the point of the drill has been aligned with the point of the rod in the vice it should come out right where you want it. Wish I could add a drawing to make it clear but, hopefully you get the idea. Best Regards, Jack
