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No problem. I even had the window open. :P

Basically the 320 grit just made wavy lines that had to be blended together with something else. Although, I must say, it did blast through rust and...

Just tried a 320 grit flap wheel the other day, and it barely did anything! Do I need to drop to 120 grit? I want to remove metal rather than just clean the blade. I have other stuff to do that. ...