Bullet Points: 1、Smooth Bending: You can bend copper, brass, aluminum and thin-walled steel smoothly and easily without crimping the tube. 2、Clear Scales: The clear scales can be accurately bend all kinds of angle you desired. 3、Standard And Accurate Bending: You can bend out standard and accurate 90°and 180°tubes without deformation. 4、Wide Use: You can bend hoses, copper tubes, aluminum tubes and some very thin tubes. 5、Applicable Pipe Diameter: The diameter is about 6mm/0.24in; 8mm/0.31in; 10mm/0.39in