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

I have used these to clean up old model locomotives. Cleaning the motor from dirt with the fiberglass pencil and the corrosion off with the brass or steel. They work well, clean things off very easily and they arent difficult to use. Quality is a little lack luster though. The nylon pencil wouldnt extend until I took off the front end. And the steel got stuck on retraction. Both was fixed by removing the front end, making the bristles straight, and putting the front end back on. The cheap, plastic feel also makes me worried about how they will hold up over long term use. No instructions on how to replace the bristles with the spares is also an issue. All in all I would say they are decent, you get what you pay for though.

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

The printing telling which brush is which is on the case, not on the brush, which is more annoying than you might think. Product is fine otherwise.

Good: The pen brushes are made well and have a smooth feed mechanism that locks in place. Bad: The carry pouch has a label for each pen (steel, brass, fiber, nylon); however, there is no such label on the pens themselves! One star deducted for this.

Just what I wanted. All as pictured/described.

These work great when I’m building and repairing small electronic devices.

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.

I ordered the whole set just to get my hands on the fiberglass scratch brush for electrical contacts. I had ONE that I used for at least 10 years but I had to leave it behind at work when I retired. This set of 4 various-fibered brushes looks O.K., but I eagerly got out the glass bristle one and twisted out a little stiff bit, and went at a tiny rust spot on a knife blade. Bloop! The fibers disappeared up into the body of the pen. Turned the advancing knob on the top. Nope. Nothing. Took the end off and there was the bundle of glass fiber. It wouldnt move except for a tiny bit and turning the knob did nothing. So, I guess thats what I have. Nothing. Just a broken pen and 3 more types for which I have no use.

Yes you have it, and when you need one, you can use it.

These little brushes are retractable which is helpful to control the stiffness of the bristles, that said the bristles in the metal brushes are a little sparse, but work for what I want them for. I am satisfied with the price and quality.