The Folding Depth Stop for Bosch Planes is made from stamped steel and attaches with a threaded hole in the side of the planer and a cut head screw. It works to guide the planer along the full width of the tongue and groove board unless a spacer board is used as a guide along the side of your piece of wood you are planing. I knew what I was getting, but this nozzle could be made to deliver a selective width of cut. During construction work, he must give appropriate instructions.