I like that they come in several Grits and that the different shapes allowed me to get into corners

This set of three wheel style abrasive brushes in three grits is a handy thing to toss in your "whatever...might need these" box of sanding problem solvers. They have a lot of uses. I used them to quickly rip away excess expandable foam in an irregular area. A messy but effective and fast solution. They work o.k. in an air drill or an electric drill, and have a maximum speed of 4500 RPM, though I used them a lot slower than that. The grits are pretty close at 80, 100 and 220, so much so that I can detect little difference between the 80 grit and the 100 grit in typical corrosion removal situations. I would just about as much preferred to have all 100 grit or double 100 and one set of 80, as the 220 seems ineffective for reasonable applications of this technology. I suppose someone else with a very sensitive surface might feel different, but if I need 220 grit or finer, I'm already well past "corrosion removal", which is what these excel at. Four stars because of the odd grit selection and the kind of useless 220 grit, but still an o.k. to get if you just need a quick irregular surface problem solver. They worked for me.

Works well on wood removing paint and such. Used them to remove rust from some old C-clamps and they were not as effective. Light Duty.

These work great for cleaning the grill. They work a lot better than a wire brush

Decent little selection for cleaning up materials in the shop. Easy to install in a drill and works great for cleaning gasket surfaces, surface corrosion or paint removal.

Good variety for removing dirt, rust, paint. I like these better than steel wire wheels for certain things, wont mar the surface and no wires flying out of them at you.

This is for "POLIWELL Nylon Filament Brush 9 Pack Abrasive Wire Brush Wheel & Cup Brush Set, Nylon Filament Abrasive Kit with 1/4 Inch Hex Shank for Drill for Remove Rust, Clean Grill, Refinish Flaking Paint" These work better than metal brushes on softer materials. Stripped paint of some smooth wood, didn't leave marks.

Nice brushes, packaging are clearly labeled to help expedite the task