8 Pieces Scratch Brush Pen Set, Pen Style Prep Sanding Brush With Steel, Brass, Fiberglass, Nylon Replacement Tips for Jewelry, Watch, Coin Cleaning, Electronic Applications, Auto Body Work

I have used a these a few times and they done the job I expected of them. They definitely helped reaching areas that I could reach with my fingers.

Using them to refurbish old lamps. They do reach nicely into tight spots.

There okay. You’ll need to trim & clean them to get the right finish you’re looking for if you’re trying to remove CA glue from a plastic model.

This was exactly as expected and works well.

For what Im doing it works great

Used them extensively on model railroad layout.

There are visual stress marks on the top of the pen where the cap attaches to the pen. THe cap constantly pops off alowing the brush to recract back into the pen. These are to cheap to be practical.

The fiberglass brush worked as expected but the nylon brush was a happy surprise with how well it performed!

Brushes are reasonable quality for price however if using these on circuit boards the stiff fiber is not stiff enough to remove conformal coatings and you need to use the brass or steel brushes. Other than the stiff fiber brush not being as aggressive as what I was used to they work fine.

Works great to clean watch braclets and inside the watch case.