The Folding Depth Stop for Bosch Planes is made of stamped steel and is secured with a threaded hole on the side of the planer and a screw head screw. It works to guide the planer along the full width of the tongue board unless a sliding 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.