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

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.

Be careful here.3m part number 29900 is not silicon carbide,it’s aluminum oxide.

Best and fastest way to remove mill-scale from steel.

Excels at removing mill scale from raw sheet metal

Works very well

I tried so many grinder wheels, wire brush wheels, cup brush wheels, etc. regular grinders would scratch the metal. Brush wheels take forever. Mill scale falls right off with this one.

I bought this disk to remove mill scale and light rust. It does do a good job cleaning both, but it wears out rather quickly. I purposely used light pressure hoping to make it last. I will not buy another one.

Ok so these are ludicrous overpriced but I decided to give them a shot after reading that they last a long time. Performance on steel is top notch. Tore right through light rust and mill scale almost effortlessly, leaving a surface that is ready to weld. Durability- I got maybe 30 minutes out of one pad. That doesnt seem THAT bad until you consider that these are $15 a pop. Im sold on the concept but not this particular product at this price point. Going to try some cheaper options under $10.

Used this to remover a pretty decent amount or surface rust from my hotrods cowl hood. Took about 30 min and I had removed all the rust from my hood straight down to bare metal without a single small spark flying. Great product and would highly recommend to anyone who is working with minor to mild rust.

Works great while they last, but they are very expensive given how long they last. Mostly I tested them byt removing paint and/or rust from a small amount of mild steel tubing, plate and bars.