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

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Awesome set of brushes!!!

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.

The package arrived on time and the tools were just what I needed. Thank you.

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.

Had some rust build up this is a great product to remove it since you can target a thin line without being invasive to the surrounding areas that are not damaged

This has a nice variety of bushes of different materials. I never used a product like this before and may have had too high an expectation for its effectiveness. It helped but didnt do the job I had hoped for. It is worth the money to have on hand.

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

I used them for removing corrosion from leaked ni-cd batteries. They worked well.

I like this set because anything that operates with batteries sooner or later develops an invisible film (sometimes visible) that interferes with the batterys contact in the circuit. Roughing up the surfaces with these scratch brushes has restored a flashlight, a pencil sharpener, and the remote control to our electric fireplace. Additionally, they have restored other battery operated devices that had extensive battery leakage and corrosion. You get a brass filament scratcher, a steel filament scratcher, and a fiberglass scratching element. I have used all three, depending on the situation. Very good product.