Pixiss Scratch Brush Pen Set With Replacement Tips, Fiberglass, Steel, Brass, Nylon, 5-inches Pen Style Prep Sanding Brush 4-Pack For Corrosion, Rust, Jewelry, Circuit Boards and Auto Body Work

Useful product and it arrived quickly

The brass and steel are simply too soft to be useful for what you would use it for. The two stars were removed because I had to open all of them to clear out extra plastic in the threads otherwise they were impossible to use.

I would be happy to pay a little more to have a little better design. Out of the four brushes that I received, two of them failed when I tried to extend the bristles. The mechanism that pushes the bristles back and forth is a poor design. They work great when theyre in one piece. The pictures depict what happened when I tried to push the bristles out. The back end came undone.

God quality and the versatility is excellent for my usage

Got this to clean up an restoration project. After using to clean up the original hardware (which had been soaked in cleaner) the 2 I used fell apart after 1 use.

Seems like every battery operated device I own eventually has bad caking or corrosion at the contacts, and I can start the cleanup with the softest scratch brush and work my way up to the steel brush whenever needed.

My husband was excited to get these. Not sure what his use for them will be but he has big plans!

Great value

The Steel and Brass bristles work as well or better than the fiberglass bristles for my purposes, and dont have the hazards of fiberglass. I win.

Great little brushes