Just this week when I bought my paint, I needed to buy some of those little grinding discs that you screw onto a mandrel. She had Norton and 3M, and I bought the Norton because that is what Dan has always had. They were cheaper than the 3M by about $ 4 a box, and we have never had problems with them, other than the mandrel wears out after a while and the disc goes across the floor like a frisbie.

Don