"I bought this for the specific task of cleaning up the frame of my trailer prior to refurbishment. the rotary brush fitted to my angle grinder made short work of what would have been a long laborious task. It worked extremely well and look as though it will last for quite a while yet."
"The moment you turn the grinder on, the twists spread out and turn the tool into a wheel rather than a cup.
No big deal, except that the thing vibrated so badly as to make it completely unusable. On a 4.5inch grinder I could barely keep hold of the tool for long enough to turn it off. On a 9inch grinder it was better but would still be guaranteed to give you arthritis and permanent nerve damage before you could get any usefull work done.
This attachment might be usable at slow speeds but I would recomend sticking with a smaller attachment."