At the time I purchased these brushes they cost $7.99 for a ten pack, thus, they obviously only cost about 79 cents each. Given their low price I would rate them 4 stars. You can only expect to achieve about 5-10 minutes of run time from them during mild to moderate buffing, and considerably less when exerting heavier pressure. From my experience, the brass is soft enough to brush most metals without scratching, and they seem to be ideal for removing rust from small tools, etc. They certainly are not the equivalent of high-quality brass brushes costing considerably more, but then again, they are only 79 cents. I strongly suggest wearing eye protection when using these (as you should with any power tool) because the little bristles WILL fly out and hit you. Thats the only reason I knocked off one star. Other than that, from a cost to performance comparison, theyre worth purchasing.

These worked great w/ the Simichrome polishing compound. It made my job much easier with less effort and even faster than last time! These didnt wear out like some of the natural bristle ones last time I had to polish something that was brass. I could apply more pressure and they didnt flare out and wear prematurely. Very durable material - love them! :D

Absolutely WORTHLESS. I purchased these to help clean stained bathroom tile grout with my Dremel. The one I was using started to disintegrate after about 1 minute of use, even though I was only applying very light pressure. Bristles flew everywhere and were difficult to clean up. Save your money and your time! Dont buy these! I ended up scrubbing the grout with a hand held nylon bristle brush. I would zero stars if that was an option.

Skimpy product

Works well for light rust removal.

I would like be more durable but it’s ok for my 1,8” tool for fix small details

Ive placed prior orders for the Dremel 428 but now find them to be far too expensive. Ive also tried other lesser known brands but they just dont last very long, with the tiny wires flying off all over the place. (Always use eye protection when using these brushes. Please.) So now Ive worn out 2 of the TEMO brand 428s and find that they are an excellent value. The TEMO quality and durability are comparable to the Dremel, but at a much more reasonable price. I use these a lot and Ill definitely re-order the TEMO. Highly recommended.

Great brushes, they’ll spin flat

I used these to polish a stainless steel pot. This is not the first time Ive done this and it always worked fine. First thing to happen was the cone shape flattened into a disk. Right away. Then the wires started to fly off. I checked the speed of my Dremel tool and it was slow enough so none of this should have happened. I used it for not more than one to two minutes and it was fully worn out. Sent them back the day I received them.

Why brass? These brass bristles are fairy soft and can clean up delicate battery terminals on vintage equipment. Brass is less likely to tear into plastic when you slip. I really like that this came in a bag of ten. You can go through these fast.