Device that allows simultaneous calibration and bending of metal sheet or steel. It also allows the execution of many different types of folds, such as undersquare folds (with an angulation less than 90°), open folds (greater than 90 °), large radius, maintaining requested tolerance angulation. Also performs “Z” open folds, doublefold etc. The system consists of a rotating previously shaped according to required applications. The product is built with very strong materials ,wear and compression resistant, hardened and surface treated in order to considerably reduce friction. The product is patented.