69Pcs Abrasive Wheel Buffing Polishing Wheel Wire Brushes Set for Rotary Tool Accessories,Shank 3mm Mini Brush Polishing Kit,for Power-Operated Grinders

They work, and since they're consumables, they shouldn't cost too much. Good for cleaning up rusty pocket knife blades.

It comes with a note that says not to use it at too high a speed and you should take note of that... note. If you spin these up too fast, they'll come apart much more quickly than at lower speeds. That being said, I go pretty much what I expected out of these. I use the most coarse ones the most and will likely be buying a separate bag of those, but the others don't need as much time after removing all the rust (which is what I was using mine for) with the lower grit. I couldn't imagine using anything else to go over all the contours of my tools. These worked perfectly. Just remember not to use at too high an RPM. The addition of the wire brushes and the sanding bits were a nice bonus, but I was really using them for the sanding balls.

Not the most durable, but the bulk amount along with a commiserate price makes this a worthwhile purchase.

Works great on my Dremel tool.

Not high quality, but very good for the price. Keep your tool rotation speed slower!

My initial thought is I was skeptical on the durability. You can see in the pics how the items are glue together. Some are not even. I saw the same sanding for Dremel and it's way better quality. I did not use these but I used the wire brush. The fine brush is good. I didn't see any of the wire brush fall apart. The other one is not good. You can see in the pic the pieces that came off in the pic that is second to the last. I will update my review as I use the flat round brush and the sanding accessories.

Great kit for the money. Large assortment of scotch bright material. Good assortment of wire brushes and a few flap wheel sanding drums

So far, I have used these abrasive wheels to clean paint of door hinges and clean mold out of hard to reach areas. I am a hobbyist in model railroading, so I continue to use one to clean not only track but wheels.