1、[Versatile Application] Ideal for metal roofing materials such as steel, aluminum, and copper. Allows bending of 0.01 to 0.04 inch (0.3 to 1.0 mm) metal sheets to angles between 0 to 90°, with recommended folding heights of 1/2 to 5 inches (13 to 130 mm). 2、[Accurate Depth Gauge] The metal sheet edge roller bender features an inch metric depth gauge on one leg of the center roller station, ensuring accurate alignment of all roller stations for accurate bending sizes. 3、[Three Station Ball Design] Ensures stable, uniform bending without length restrictions, making it perfect for bending metal roof leakages and rain guards for houses, factories, and more. 4、[V Shaped Roller] Designed to securely grip the material during bending, reducing errors in the bending process and ensuring accurate results. 5、[Reliable Construction] High speed steel quenching roller ensures a longer lifespan. The aluminum alloy handle provides a comfortable grip for ease of use. 6、[Wing Screw] Side wing screws allow easy fixing of the lifting plate, ensuring the desired bending height is maintained securely during operating.