http://www.dynabrade.com/dyn10/content.php?page=catalog
Here is a dynabrade, It almost seems to me that they may have made this for snap-on. A few years back, I sold a few crud thugs, never stocked them on the truck so obviously didn't sell enough of them. I think the da sanders are dynabrade as well. If you look at them side by side there are a lot of similarities. I would imagine that eastwoods tools are probably built by someone else as well.