When using my bench model drill press on long pieces of wood, I often run into trouble holding the stock level as I drill one end. This adjustable supporting jig is my answer.
I use two pieces of 3/4” plywood joined at one end with a butt hinge. This covers more than the range of adjustment on my 8” drill press. A 6” long piece of 2×4 serves as the adjusting block. Turn the block on its short edge and put it lengthwise in the jig when adjusting the support to higher levels. Glue a piece of sandpaper onto the lower flap of the jig to keep the block from slipping when you put the weight of the stock on it.