I've had a 511 grinder for a few years now and I just don't care for it. I can hand file the cutters better, and just as fast by hand. Small grinders under $1.000 remove to much materiel, and no matter what you do, you still end up overheating the teeth.
I use one of these guides to keep the file at the correct height.
I use one of these guides to keep the file at the correct height.