I had to punch approximately 63,944,593,289 holes in my Challenger's replacement roof panel to electric weld it. Maybe I wouldn't have survived without this tool. Clean, accurate holes with virtually no plate distortion. Well, somehow not on purpose. I accidentally put it in the wrong side once and can confirm it makes a damn fine flange too. Oops. I love it so much I may take it on a romantic trip once this restoration project is complete.