3 In 1 Copper Pipe Bender3 In 1 Copper Pipe Bender is a bending tool for copper tubes, aluminum tubes, and stainless steel tubes, and it is designed for bending tubes with a diameter of 6mm, 8mm, and 10mm (Metric System) or of 1 4", 5 16" and 3 8" (English System). The 3 in 1 design of this bender makes this tool very practical and economical for diverse applications of pipe bending. By using the bender, you can get a wanted angle of matching needs, as this pipe bending tool