I have a co-worker that does not like to use centermarks on circles/holes in drawings. The problem is when he checks drawings he's telling some of the less experienced designers to remove the centermarks. In my nearly 10 years of drafting and design work I have never seen anyone not use centermarks. The one thing I found in the ASME Y.14.2M-1992 2.6 Center Lines, it does not say that you have to use centermarks as a standard and that is what I'm looking for, thanks for any and all feedback on this one.

LaMonte B.