Drilling a 55, is it tempered?

[BIG-G]

Bummer. Curious though. If you were to start a drill spot and only cut a little then stop for it to cool off and repeat the process of start stop. Would it be possible to drill all the way through eventually?

If you are referring to plate glass then yes you could, it would take forever.
if you mean tempered then no.
There isn’t a way to drill tempered without it exploding.
When glass has been tempered the molecules are aligned in a chain and any attempt to drill it brakes the chain and the piece of glass explodes.