The Aeroflow Performance 5 in 1 pipe bender hand tool is designed for creating ripple-free and clean bends in pipes with precision in a range of materials such as copper and aluminium Aeroflow hardline. This tube bender is not recommeded for stainless steel line. This 180 degree bender tool is capable of bending 1/4", 5/16", 3/8", 1/2" and 5/8" tubes with ease. It features a calibration scale for easy accurate bending of right and left bends providing you with a reliable guide to work with.