I should have bought this many years ago. Works great on ripping on Ag panel 29ga. It requires a battery, I bought an adapter to use my existing batteries and I'm glad I did! They take about 12 breaks on a 3" bar before it slows down and is ready to be replaced with a 4Ah 20V battery. I wouldn't buy this if I was just doing a project/build, but if you're a regular panel cutter then berries are it!