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

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.

The brush set is okay. However the steel brushes quickly became detached from their base, and now they just fall out whenever the brush is used to clean corrosion. I have to replace the steel brush pen, but will use a different brand/model

Needed a fiberglass pen to clean some corrosion off a circuit board and it worked just right! Thanks again.

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.

good for getting into tight places, dont know if I can refill the brushes ?

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.

It should do the job but its a cheap quality item, I would not buy again. One of the 4 pens was defective.

Got the job done and delivered before promised

I got these to repair dings and dents on my cars paint jobs but I cant say they work. I watched a lot of videos on how to use them but either Im not a pro, or they just need a professional hand. Would not recommend at all unless you think you can figure it out.