So we have these scotchbrite type flap wheels that we have been finishing aluminum profiles with. We are looking for the best way to dress these wheels to fit the profile to help speed up the process.

The wheels are non-woven 12" OD 5" ID and 3" wide, the profile that i need to cut is only one one side and is going to be a 60 degree angle starting around 3/4" in from the edge. Currently we labor away with a lot of 40 grit sand paper stacked on a scrap part to eat away at the wheel.

Its a long process and i am sure there is a better way, any ideas?