Quote: Try using a sharp edge and score around the knockout several times until it penitrates a little and then gently try knocking them out Actually knock them into the covers, not out You can smooth them up with a die grinder and a carbide aluminum bit
Cab, thanks for the advice. I drilled a large hole in the center & took a few files to it. With a little elbow grease, I hade it perfectly round & smooth in about 10 minutes. Its an easy fix for anyone who wants to open the holes in their MP covers.
Actually knock them into the covers, not out 
You can smooth them up with a die grinder and a carbide aluminum bit 
