..Possibly the greatest metal tool I have ever used. This is what they are:
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=44975And if you can't tell from the picture, it's a ton of little pieces of sandpaper, attached to a disc that attaches to a 7/8" arbor grinder. I needed to find a way to clean up my frame, and the marks that the grinder with the typical wheel attached to it had left behind. Went to HF, found these, and now I"m not sure how I lived without them. They work faster than a typical disc, they leave a smoother finish(huge perk), sure they wear out a little quicker, but I want it done right, and at 5 bucks for 3 discs? Come on, can't beat it. Give them a shot if you haven't ever tried them. I cannot say enough good things about them, flat out.
Steve
