Stop in for a cup of coffee

I need to find something I can put in a drill or 4 1/2" grinder to strip and clean my wrought iron railing. I used wire brushes last time and although they worked they didn't last long. I picked wires out of my gut a lot.
This is what i mentioned,although from canadian tire, they are available from other mfrs. im really happy with how durable it is, 1” square tubing was quite rusty. I could have made it pretty shiny. 9C27E235-D839-484D-BE11-FA75433B87F6.png