Binding Materials: For bending steel roof materials (such as steel, aluminum, copper, etc.), used for information booth, garage rainproof panel, gutter splashproof panel, roof rainproof panel, etc. Reasonable Desig: 3 station roller design ensures stable and uniform bending without length limitations, making it more suitable for making metal plates for house, factory, and other purposes. High Efficiency: The V shaped roller perfectly clamps the material during bending, reducing errors during the bending process, the wing screws on the side can easily fix the lifting plate. Materials: High speed steel rollers have high hardness, extending the service life of bending tool, the aluminum alloy handle can provide comfortable grip, improve work efficiency. Product name: Edge Roller Bender Expansion diameter range (mm): 6.3-22 Item Type: Edge Roller Metal Bending Tool Colour:As Shown Material:steel Package Contents: 1 x Edge Roller Bender Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.