Used the sheet metal nibbler with a cordless drill to cut holes in a 22ga (0.794mm) sheet to make a transmission cover for a 1982 Jeep. It was SO MUCH FUN! Totally easy to cut round holes, oblong holes, make corrections, etc. I finished the edges with a file, and LOVED the results. I have a lot of work coming up on another Jeep project, and am already looking forward to using this nibbler again!