Saw this on a late night informercial, but it actually looks like a really useful tool. Apparently it vibrates the blade/saw/scraper/sander back and forth so it can cut without large back and forth motions.
I immediately thought about using the scraper blade to remove undercoating from a 911.
Anyone have one? Does it work well? Is there a cheap, Chinese-made knockoff?
http://www.waltertool.com/multimaster_sys.html