3M 048011-18730 3M-18730 Roloc Bristle Disc Grade-50, Size-2, Green

i dont usually like leaving bad reviews but this grinder cookie is pathetically expensive for what it is and the listing says that it comes in a set of 2 and i only received one. i use these things to clean up mating surfaces for engine components and go through then extremely fast. amazon doesnt have an option for hey half of what i ordered here is missing so im not sure what to do about it. buy at your own risk

Prompt delivery. Works as advertised.

used wheel to remove RVT on front engine cover.

The green 3M bristle disc removes paint and rust quick and doesnt mar the surface. They are a little overpriced but work way better than the imported - no name brands.

I got the green one which is for iron surface finishing or body work, my words as well as other Techs. White is finer grit (under 200 though) and better for aluminum surfaces. Let me caution you that no matter how safe Techs like myself want to say these are, they sort of arent in some situations. Polishing a blocks cylinder head surface and getting some down debris that you may not be able to see down in the engine...not ok. Some people line things with oil and paper or q tips as I do to plug passages and holes. etc. Water jackets not a huge deal, if you are going to flush it and use an compressed air to clean away debris...yet not perfectly clean inside engine. Many techs will NOT use these on blocks surface. I do. You sort of have to decide for yourself the risk and proper preparation to actually use it on a block. Other places I dont even prep I just buzz (lightly) off the material and enjoy the long lasting bristle disk for about 3 heads or various jobs. I can use the worn down flat part in the end later for rust on the frame or body. So I feel I get good use here, but it is costly. definitely better than 3m roloc fiber disk. Longer life, less hassle.

I was hesitant to buy these, never having tried them, but they work great. My unseated workspaces mean I clean up a lot of rust and these mean I don’t always have to totally refrained everything with various grits of flap wheel.

Had to do a headgasket on my isuzu and this made my job much easier!

This tool is a good one to have laying around when you need it. I will buy it again.

Great for cleaning gasket faces just wish they were cheaper

Did a great job not to hard on the metal took off paint well.