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

Works great for cleaning up a cast iron block,

Another great 3M product. It worked very well in cleaning the engine block for a head gaskets replacement

First time I used one of these for cleaning the surfaces up on my engine to install new intake gaskets. Did very well cleaning off the old grime and gasket material. Just be careful to to apply too much pressure because it is aggressive enough to start removing some of the surface material. I think they could be a little better priced. I would have bought two if they were priced around $5-$6.

Nice product

Works great.

Great bristles they are graduated as they go into the center. This is heavy duty and has held up the shops abuse so far (it is a lot) They also handle delicate work that a rougher sandpaper would not be able to do I love these and they last and last a must have for any shop

item was exactly as described and arrived quickly

I like it

great product!

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.