The TB368 is a triple head, all-metal lever type tube bender for 1/4″, 5/16″, 3/8″ (6, 8, 10mm) O.D. soft copper, aluminum and thin wall steel tubing. Creates smooth, tight radius bends up to 90° with minimal effort and without scoring or flattening of the tube. Engraved bend angles are easy to view. Wide hook securely grips tubing.