Review on Dremel Abrasive & Finishing Products: Brushes Rocaris Wheels and Accessories for Precision and Perfection by Steve Quinn

Bought to detail my engine and engine bay. I needed to get rid of the corrosion, rust and wear on my engine's aluminum (not sure what it was - pitted and discolored). They're a lot smaller than I expected and didn't last very long (especially the ones with wires). At high speed, I went through these things at about 1 speed in 3-5 minutes depending on what brush I was using. Unfortunately they don't wear out the brushes like I would expect (not sure what other brands do), the wires just come loose resulting in small metal wires being pelted at you. USE GOGGLES and (assuming you use them for a long period of time - in my case around 4 hours (in that time I've worked through almost all 60 wire brushes)) expect to throw away the clothes you wore have, or spend hours picking out wires, which is even more difficult than it seems. However, they did their job and I'm sure there are so many of them. If other brands had the same problem, this task would be ridiculously expensive.