Originally Posted by QueenOfInkland
I didn't see it anywhere in this thread (sorry if I missed it) but in the video they said that this tool also includes/has a corner rounder.
Yes, it does have a built-in one on the outside. The one on the inside punches out the little places where you fold the envies. Then you put the square corners into a place on the outside of the tool and punch. If you watch the video you can see how it works.