MDN, My favorite method of bevelling without a belt grinder...
Hammer your rough bevel.
Then, normalize, anneal, and all that good stuff...
Then, use the angle grinder with a regular grinding wheel to rough grind.
Then, use files to get it how you want it.
Finally, switch to sand paper, and don't stair step up until you have completely removed the previous marks.
With this method, you can make 'em look as nice as any.