Tool designed for waving and corrugating metal sheets, especially recommended for flexible metals, although it can also be used with other thin metals and materials such as copper, tin, brass, aluminum, or even cardboard. It allows a maximum corrugation width of 7 cm and is made of aluminum, which provides both lightness and durability. In scale modeling, it is very useful for creating a wide variety of scenery elements, such as asbestos roofs, trench walls, fences, or any surface that needs to be replicated with a corrugated finish. It can also be used to get the most out of your oil or acrylic paint tubes. Instructions for use: insert the sheet into the tool and turn the handle so that both rollers press against the material. It is important to keep the piece properly aligned and centered. As it moves forward, the corrugated pattern will be formed. Recommended maximum thicknesses: Tin 0.8 mm / Aluminum 0.5 mm / Copper 0.5 mm / Brass 0.3 mm.