There are lots of nibblers out there for light gauge sheet metal commonly used in the HVAC and roofing industries, but very few that can chomp through 10 gauge steel like this one can. You can do some serious fabrication with this Vevor model for about 1/4th the price of other brands I've looked at.
There are only two things I wish this had: A variable speed motor for precision work because this turns pretty fast at 1,000 strokes per minute. The second thing would be an interchangeable set of cutting teeth with a curved profile that would cut out crescent-shaped slugs instead of the rectangular ones that this one produces. Of course you can always use a die grinder or file if necessary to smooth out the edges if they're going to show. Neither of these suggested features would be worth paying four times as much as I paid for the Vevor though. This is an excellent price for a very useful tool.
David C. Damusis 
Qbayle 
