Notes on use: To adjust the blade, loosen the cap wheel until the lightest possible pressure is exerted on the blade. Position the blade sideways with your fingers and then, with the help of a piece of wood to rest it on, advance the blade until it touches the surface. Tighten the screw with about half a turn and do a cutting test; adjust further if necessary. To block the blade it is not necessary to apply all the tension that the wheel is capable of, since there is also the advantage of the lever effect of the cap.