Removing sector teeth

I have taken some teeth off my sector gear,but I need to remove the burs left on the gear from the process I've been told to use a dremal but I don't know what bit to use.what dremal bit should I use to debur and polish the gear?

I use these kind of bits in a dremmel

http://www.harborfreight.com/4-piece-diamond-coated-rotary-drill-bits-32375.html