Drilling into tempered glass requires special diamond drill bits in order to cut through the dense glass. The procedure can be long depending on the thickness of the glass, and the drill bit needs constant lubrication in order to make it through the glass.
Product Specifications. Now drill holes in glass with your Dremel rotary tool. This diamond-impregnated core-style bit features superior long life and is ideal for drilling in both flat and contoured surfaces. Diamond grit a full 360-degrees around the circumference of the bit allows it to be used i
Drilling a hole in stained glass with a Dremel – Turn the drill on. The fastest speed is best for drilling holes. – Holding the hand piece like a pen, introduce the drilling bit to the glass slowly, from the side to start with to make a small dip to prevent slipping and scratching.