18-Piece Bore Brush Set- Stainless Steel Bore Brushes with 1/4 Hex Shank Twisted Wire Bore Brushes with Different Bristle Lengths for Tubes Ports Bearings Cleaning (8mm, 10mm, 12mm, 15mm, 17mm, 19mm)

Depending on how hard you use these, they could be good or not. I use them to clean the threads on used pipe fittings and they work fine. If you really pound them hard doing something, they probably wont last too long, but hey, they dont cost much either...

Works very well removing rust or anything unwanted that causes clog.

Great product works well

Refinished some lawn furniture, got into some tight spots. Work excellent!

Great quality product will reorder as needed

Great service, and the brushes seem to do the job quite well thanks

About 50% arrived bent. Really? On a drill how well do bent drill bits work? Not well and they are dangerous. Get a better brand. Returning them.

Work great for everything from brake slide pin sockets to barrel bore cleaning

Good construction.

I use these in my impact driver and with a hand tool to clean out bores while doing automotive repairs, they work great and are much more cost effective than buying off the tool trucks!