6 Pieces Stainless Steel Bore Brush in Different Sizes Twisted Wire Stainless Steel Cleaning Brush with Handle 1/4 Inch Hex Shank for Power Drill Impact Driver, 4 Inch in Length

Im just using these to brush out golf club head hosels after the shafts are pulled. The wire is medium gauge and fine for getting most of the old epoxy out, but the wound shaft is too light duty. I had one break right below where the bristles start, and it was just barely over the hosel size. Ive bent 2 others (one larger, one smaller) which is fine if the shaft on the brush was heavier or more resilient but its obviously not. This is a case where you probably DO get what you pay for, and Ill spend more when I break these (likely wont take long) and buy from another manufacturer.

I use them to clean out the piston holes on brake calipers of seriously clogged brakes.

One broke so not very sturdy cheap metal

As you can see in the pictures the bristles literally spun right out of the bit after using them for about 20 seconds. I was really disappointed in this purchase and now I know why they were somewhat inexpensive.

Not a terribly robust design, but they do what they are supposed to do. I have worn out two so far, using them to get rust out of a complex piece of metalwork with a lot of crevices and corners. I have may leaned too hard on one, which after about 20 minutes snapped off at the base of the brush. I wore out the bristles on another one. But, they did the job a wire brush is supposed to do.

just what was needed to work on a pressure pump

product does the trick. Great for cleaning small diameter copper pipes & other small delicate mechanical parts. Wish it came with a screw driver type handle.

I used these brushes to help clean out the eye of an axe that I am restoring. One brush came apart in my hands when I picked it up out of the box. Another one came apart under use with moderate side pressure. The rest did okay, but I have no illusion about them holding up over the long term. If you consider them to be a single use type of item, you might get satisfactory results with them. But make no mistake, these are cheaply made.

I use the brushes to clean bushings.

Two of these broke within 10 seconds of starting to use them. The next two were shockingly too big or too small. Dont waste your time on this product.