Scotch-Brite Clean and Strip XT Pro Disc - Rust and Paint Stripping Disc - 4.5” diam. x 5/8-11 Quick Change Thread - Extra Coarse Silicon Carbide - Pack of 1

Pricey, but well worth it for removing paint.

The Scotch-Brite wheel is a great addition. It works excellent for taking off mill scale. Does not clog easily and does not wear too fast a great tool for cleaning metal preparing for welding or painting well worth the money.

I especially like that it sticks a bit out from the grinders protective shield, allowing to put it down horizontally. Pretty aggressive on wood though, need to touch down very gently.

I did some online research and noticed that a lot of people rated this 3M wheel very highly for removing mill scale from structural steel. They are right. Its like the magic eraser for welders. Much faster than wire brushes. Not as obnoxious as acid methods. Buy one. You wont regret it.

I use a lot of hook/loop surface conditioning pads from the same manufacturer and bought these based on a YouTube comment about their performance/life. I am very impressed with this disc. It seems like it has lasted maybe 3X the conditioning discs I usually buy. Used on hot-rolled steel to remove remaining scale after vinegar pickling. Scale can be pretty tough to remove, but Im happy with this process as long as the parts fit in my bucket of vinegar :)

Worked like it should. Good abrasive life

Great product, using it to remove Mill scale. This wheel isnt loading up as quickly as other brands.

Best option for mill scale removal from steel. Also great for surface rust removal.

Works really well, but unfortunately only for a couple square feet.

Removes paint and mill scale without marring the underlying steel better than anything Ive ever used. Durable. Worth the price for a quality product.