Review on 20 Pack Of NIUPIKA Brass Wire Wheel Brushes For Grinder Rotary Tools - Perfect For Polishing And Abrasion by Justin Newport

I use these to clean the threads on screw and removing crud and rust from the slots on the screws. Because they work so well I use them on the compression rings that go into Edison Diamond Disc reproducers and the body threads. The other thicker wheels clump up and lose their ability to clean. I change these often because the get dirty, but for the price and convenience they are well worth it. They are gently. 1. Use the lowest speed. 2. Please use eye protection, the tiny wires would be horrible. I know, before I used eye protection all the time I got a metal splinter in my cornea. I removed it myself which was equally foolish. These days I use eye protection and a respirator with particulate filters.