Why doesn’t a drill press come with an adjustable fence? My solution is essentially a two-part table. The fence (C) is attached to the top part, which slides on the runners (F) of the bottom part, which is fastened to the drill press table. Setscrews thread through T-nuts mounted inside the side rails (D) to lock the top in position. The bottom holds an insert (E) that can easily be replaced whenever it starts to look like Swiss cheese.