very old method to engrave glass is the use of a drill, like a dental drill.  That is exactly what Tom Konczal does in his very unique engraving studio, A Cut Of Glass, located in beautiful Ojai, California.

Browse through some of the images of Tom's work, and see how he is able to translate his vision of wonderful art into an engraved image on glass.  This is some of the most unique glass engraving you will ever see.