Bending tool

The utility model discloses a bending tool. Including a base, a driving device base is arranged on the base; a planetary gear mechanism is arranged in the driving device base; one side of the planetary gear mechanism is connected with a handle through a sun gear; wherein one side of the driving roll bending wheel is connected with one side of the driven roll bending wheel, the other side of the driving roll bending wheel is connected with the driving roll bending wheel through a gear ring, the driving roll bending wheel is connected with the driven roll bending wheel through a roll bending wheel connecting arm, the driven roll bending wheel can rotate around the periphery of the driving roll bending wheel, and a space for containing a to-be-bent object is formed between the driving roll bending wheel and the driven roll bending wheel. According to the utility model, the stay wire can be bent into a proper shape, and the operation risk that the stay wire is bounced by the elastic forceof the stay wire is avoid