Next, we use a radius gauge to identify the exact radius of the damages areas, and reshape them with the planishing hammer, using the appropriate CNC-machined, hardened steel head. This is a process requiring experience, skill, patience, self-control, and REAL tools. Don’t try this at home with a $99 planishing hammer from Harbor Freight – it will turn this panel into scrap metal in about 60 seconds – stretching the metal beyond your wildest imagination… This panel came out very nicely because it was a virgin panel – it had never been beat on by well-meaning but inexperienced hands…