polishing and shaving valve cover

[crazy_skier]

Hi, first off not sure where to put this so i decided here. Anyways I am shaving all the lines on my valve cover and the 2000 on the vc. So my dielemma is I burnt out the dremel shaving the lines and dont trust the bench top grinder becuase it will eat to much off. Any ideas for the grinding of all the stuff??
Thanks