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

Did not hold up as well as I hoped. Bought to strip mill scale on some plate steel. May work on lighter mill scale, but didn’t hardly touch mill scale on 3/4 plate.

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.

Se uso para remover restos de pintura en lamina y se desgasto demasiado rapido

The only pads I’ve tried that thoroughly clean metal without marring the surface like flapper disks do. And they don’t seem to clog up as much as other brands. Pricey but worth it.

This disc makes mincemeat of mill scale WITHOUT removing base material as is common with flap discs. I was able to remove mill scale from a 7 deep x 7 tall x 6 feet long steel bumper in under an hour, then finished up with sanding in stages to a 180-grit finish for priming and painting. I ended up using one complete disc and just a bit of a second, but still have some remaining use of the first, which Ill use on smaller pieces when needed. I tried other off-brand non-wovens that are silicon carbide based, but they didnt seem to be as effective as the 3M product. Im sold.

Lasted for about 50 seconds before worn down to nothing, yep I timed it... Went back to standard wire, and flapy disk for rust/scale removal.

Excellent product. Cant beat the value and quality of this product. Does what its advertised to do and then some. Dont press on the pad, let the pad and your grinder do the work. Applying pressure just pre materially wears you and the pad out. Great product.

They advertise it will take millscale off quickly Well it took it off the front half of this 14 inch x 10 inch piece of metal, disc is 3/4 gone and has stopped working Garbage for over 20 bucks a disc, side note this same disc is $11 at local stores dont buy it from here

Excels at removing mill scale from raw sheet metal

This product works awesome at removing mill scale and rust to prep for welding or painting. They are very expensive so I am cautious to only use this when needed, otherwise I use cheap flap discs. Definitely worth having one or tow in your garage though.