Use a variable speed Dremel tool and a diamond dust coated burr. Slow speed, gentle pressure, and don't let the heat build up. Getting the glass hot will make it crack. Doing the cut under a slow stream of lukewarm water in the kitchen sink might be a good idea.
Jerry
Do as HRL suggests.
Paul
"I'd rather see a sermon than hear a sermon".... D.A.D.
Trump Won!, Sandmann Won!, Rittenhouse Won!, Suck it Liberal Fuuktards.
molɔ̀ːn labé skýla
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