I have a question on what and how to drill a hole in a glass bathroom
mirror. I have to replace the light fixtures and they are different than
what I have. These were the light fixtures in place when we went to full
length vanity mirrors and the installer made access holes for the wire
and the attachment screws. And, guess what, the attachment screws will
be in a different place this time.

What is there to use. I have Googled some and found out that there are
diamond drills out there. How are they used. I have to do this job right
the first time or I get to have a new mirror installed.

Ross