When you think of all the safety gear (and training) to avoid injury with a chainsaw, it seems blades like the one above are potentially setting people up for some very nasty accidents, even if holding-on tight to the grinder.
@MIXERMAN - I'm not being a nob saying that. to annoy you. I'm saying what I see, and, as a fellow tradesman, I'm tempted to suggest you throw it away rather than use it - your wellbeing is more important than the convenience of that blade, is it not?
Wire cup brushes are dangerous too. Restored a couple of minis as a kid, and one time, de rusting the boot floor, straps on my goggles picked up on brush and in a split second, just about managed to stop it burying it into my face.