I just got this in the Dremel Cleaning/Polishing kit, intending to use the felt wheels and rouge to polish some gun parts and smooth them out. Well after about an hour of almost no progress, I looked at this little bit and said "hmmmm..." Wasn't sure exactly what it was yet, but gave it a try. Fantastic! Worked much better than the polishing compound, with less mess from compound slinging everywhere, and did a better job, faster! didn't seem to remove hardly any metal, helped smooth out minor toolmarks and general minor scratches and gave a nice even finish. I was using it on stainless, so not sure how much it will remove on softer metals...