Delta does not mention it in their manual, but I recall reading somewhere that you can swivel the head of a floor press to the side if you need to drill something that is longer than you can drill with the table in place. I am assuming that the two set screws release the head and allow it to swivel? Is there anything dangerous about this? Does it make the press more unbalanced or something? Should you only do this if the press is bolted down? Just wondered why Delta does not mention it in the users manual or if there is any reason not to do it. Mine is the Delta 16 1/2" press.