Review on 🧹 3M Roloc Bristle Grade 18730 by Michael Hellewell

My first time using one of these to clean engine surfaces before installing new intake gaskets. Very well cleaned old dirt and caulk. Just be careful not to apply too much pressure as it is aggressive enough to remove some of the surface material. I think they could be a little better for the price. I would buy two if they were around 5-6€.