Uniweld 70009 Lever Type Tube Bender for 5/16-Inch OD Tubing of Soft Copper, Aluminum, Brass, Steel and Other Metal Tubing Will accurately bend 5/16in O.D. tubing of soft copper, aluminum, brass, steel and other metal tubing Bend radius 11/16in Calibrated markings show angle of bend for smooth, short radius bends up to 180 Degree Wide hook grips tubing securely