To remove dents from car body panels, there are several methods. One of them is using a magnet in combination with a large metal ball placed on the opposite side of the panel. This allows for the panel to be pushed out, but this method may only be effective if the panel thickness is above 0.6 mm.
Another method is the PDR (paintless dent repair) technique, which involves manipulating the metal panel using a specialized toolkit costing around 500 PLN. This method is quite labor-intensive but allows for effective dent removal without the need for repainting.
Yet another option is to use an electric device such as the PDR 1000, which generates a magnetic field. This tool is specifically designed for removing dents on flexible steel car bodies and provides a convenient and professional solution for automotive mechanics.
For more information on magnets, visit the article on technology.