21. Drilling a piece of aluminum round stock in the lathe would be a simple task. Unfortunately, my lathe was on a pallet getting ready for a move, so I opted to do it the hard way, which is probably how most of you guys would have to tackle something like this anyways. Since freehand centering an aluminum bar in a drill press is pretty difficult, I made a jig that will hold the bar while it’s being drilled. The hole in the jig is drilled to a slip fit so that the bar fits fairly snug.