if you are talking about the infi dimples, it will take far more agressive sanding to remove them.
if you want to put a polished finish, start with lower grit, maybe 400, then work your way up to 2000-2500 grit. if you like, you can use a metal polish at this point, but you probably wont need it.
the dimples will be on the unbeveled portion of the blade. to remove them, you have to grind quite a bit of metal off. you might consider a sanding wheel or belt sander, then apply the fine grit paper by hand.