0petermeix123 11 years ago There is a product already on the market that does that... If you Google electromagnetic dent puller you can find info on them..They run about 250 dollars US. I have talked to dent removal experts who say they are no replacement for the picks end other tools that push the dent out from inside the panel. I have seen demo videos of the electromagnet quickly removing small symmetrical dents like minor hail style dents and in theory if the magnet is skillfully used it can shrink the dented metal back into shape but as Caitlins dad said this is a risk for damaging the finish. The demo video I saw showed the user circling the perimeter of the dent in a circular motion and then gradually lifting up and away as he approached the center of the dent.