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

Bought these to clean out the hex head openings on the alignment cam adjustments for semi trucks.

The largest brush broke after using briefly. I haven’t used other sizes

I was hoping to do some serious cleaning between some deck boards and within 20 seconds, the first attachment broke off into two pieces. I was not aggressive, shocked me. I figured it must have been a fluke. I attached the next one and it not only broke off, but caused me to injure my finger when it broke. I was upset and decided it was time to send them back. I bought a nice set elsewhere that work great and have used them multiple times without any issues.

Perfect for my project.

I received yesterday and used the 19mm brush to clean light rust from some 3/4-10 internal threads. The brush came apart within less than a minute of use. I had high hopes for these brushes. Very disappointed.

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.

Did what I needed but they were a once and done piece.

These brushes are weak. Broke two on a brake job. Expected to see them last through several not less than one.

Absolute junk. Broke within two minutes. Do not buy.

Total junk. Within 5 minutes of use, removing paint, most brush bristles came off. New one for comparison. Would NOT buy again.