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

Worked like it should. Good abrasive life

Got the actual disc as advertised. Works great. Given the proper selection of the correct abrasive 3m are often the best.

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 used this to remove *heavy* mill scale from all the surfaces of a 10” piece of W8x40 I-beam. It took probably 65% of the disc to do it but it did an outstanding job. 3M states it’s only for light mill scale; mill scale doesn’t come much heavier than what I used it on. And no danger of cutting into the good steel or dishing it.

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.

Description says pack of 10, only received a single item.

Exactly what I needed to remove mill surface from plate steel when prepping to weld-no other abrasive product that I have tried compares to this-perfect! Typical 3M quality. Longevity of the disc is as yet unknown,but is a minor concern for me-I will purchase more if need be....

I removed mill scale from a price of 1/2” plate. The disks work best if you use light pressure and take your time. If you are pushing really hard they break down quicker and the amount of mill scale you remove per disk greatly decreases. Working from the edges of the mill scale also works best, rather than starting on top of a solid mill scale area.

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.

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