Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Tight Fit
Review: The instructions say to use the brush with the guards on. I have a 4 1/2" Porter-Cable and it is a very close fit. The brush sparks on the guard but cuts fine. I guess the 4" wheel would have been better in my situation. You'll probably have to take the guard off if you do much with this brush. I also have a smaller cup brush and don't have any issues like this one. I gave it Stars because it does what it is supposed to do.
