"Karl Townsend" wrote in message
...
Milady needs me for my shop skills. Don't happen that often.

She has old canning jars. The type with a glass lid and a little wire
arrangement to pull the glass lid tight. She wants to put small lights
inside and needs a hole drilled. I haven't measured up for sure, but
I'm thinking this stuff is 1/8 NPT size.

OK, how do I drill very old glass? I get several points off for every
one I break.

Karl

I've found that diamond grinding burrs in a Dremel do the job very
well. Submerging the glass under water with the grinding site just
beneath the surface catches the dust, keeps everything cool, and
damps vibrations in the glass.
Art