So I felt extra motivated this afternoon and decided to clean all of my tops. The summer was extremely hot and humid for my area and I had surface rust on several machines. I tried the method from the video below, which involves putting an abrasive pad under a wire cup attached to an angle grinder. I had no success with it.

https://youtu.be/-uMrVusnaEg

I tried this once or twice before but have never been successful. I have tried two different wire cups and a few different abrasive pads but, each time, the wire cup cuts through the pad. This happens very quickly. Has anyone here been able to do this? Any thoughts about why I can't make it work?

Not wanting to waste my motivation, I put the abrasive pad under an old POS ROS. This worked fairly well but was much slower. It also removed the hooks from the bottom of the sander. Do not try this if you ever want to attach sandpaper again.