Review on Woodwork Polish Grinder with Abrasive Nylon by Jason Epstein

I have not used this kit yet but I have also purchased 400, 600 and 800 grit kits which I recently used to clean and polish aluminum hubs and cylinder heads on a 50 year old Bicycle . Each brush wheel consists of four thinner wheels mounted on a mandrel. I was able to remove/replace individual brushes to make them different thicknesses. I haven't used coarse grits yet. Looks like they'll last a long time. The only downside I found is the grit on the sticker - it can come off over time. I used a dremel to mark the sand on the wheel hub.