I have a hand-held buffer that my wife fancies. She would like to use it to clean very dirty shower/bath tiles. I think my buffer is not powerful enough for what she needs and may turn a bit too slow.
At any rate, I'm looking for suggestings for something she can use. We once used a grinder with a buffing pad and some Barkeeper's Friend to clean a very scummy shower (walls and bottom) in less than an hour. It would have taken several hours by hand.
Something held-held and wireless would be best. Suggestions?