For use with the Dremel rotary tool to drill glass, ceramic wall tile, glass block, glass bottles, and jewelry

The diamond-impregnated core-style bit features superior long life and is i for drilling in both flat and contoured surfaces

Diamond grit a full 360 deg

around the circumference of the bit allows it to be used in a rasping action to enlarge a hole if needed

Holes on the side of the bit allow the removal of glass dust from inside the bit

Packaged with Dremel cutting oil to increase the speed of cut and prevent damage to the bit from overheating