Tube BenderEach tool bends one size. Open side type which slips over tube at any point. Makes smooth tight radius bends up to 180° with minimum effort. No scoring or flattening of tubing. Calibrated to show angle of bend. Wide hook grips tubing securely. Applicable Materials: Copper, Aluminum; Radius: 3 in; Tube Outer Diameter: 3/4 in; Weight: 7 lb.