4 Piece Stainless Steel Wire Brush for ports, tubes, bearings and other common wire brush applications Power Drill Impact Driver - Hex Shank

If you have a 1/2 hole you need to clean, you need a brush that is just a little bigger than 1/2 so the bristles actually push against the thing you are trying to clean out. But these seem to be the opposite. They seem to be a little LESS than the rated size. So they are not really worth getting. And if you try to use the next size up, they are way, way too bid.

2 of 4 broke within 5 mins. Garbage. Not to mention the quick release doesnt latch to the drill cause its longer than the normal ones. One of the biggest piece of garbage on Amazon.

I initially purchased for a unique and uncommon job on my BMW 745. Im sure they will be nice having in my toolbox because I am always tinkering on all sorts of things. These arent ideal for say grinding rusted truck frames or industrial use folks breaking them in half, what in the world are you doing? These are more ideal for smaller jobs and if you like to tinker like me Im sure you can find use. Seller was more than helpful as well. Win win.

I purchased this brush set to clean 1 inch diameter holes on my pipe bender die set, I attached it to a die grinder. At first it worked okay on very low speed but as I proceeded to increase the speed of the die grinder the brush folded and bent all out of shape so much that when I bent it back into shape it just snapped off. I would not recommend using it for any serious brushing.

Sticks in quick release

Broken during first use each piece.

Brushes came mangled, strands bent and crumpled. Was going to return, but waited too long.