The subject of small dings and dents was brought up, so I thought I would post a few pictures of how an old body man showed me an easy technique to work them out if you have access to the other side. Using a spring-loaded center punch with a filed down blunt end.

Start with locating and marking the dent from the backside. Then unscrew the spring-loaded center punch a few turns as to lessen the blow for the first try. It may take two or three strikes to get the panel flush, along with changing the tension on the spring loaded center punch. You may need to move the impact point a 16th of an inch in either direction to work the dent out.

Thanks
Pat