Brad .... just to be 100% "correct" in the description of this part(I am surprised that no-one has mentioned this earlier-I furgot to) ...

what you have pictured is a carbide CUTTER ... not a burr. A cutter will tend to walk-around on you(muchO more than a burr) .... and if that happens in the port and then starts banging-around ... it could either severely bend the shank of the cutter ... or/AND damage your grinder..