Dremel 1/8 in. Rotary Tool Glass Drill Bit for Glass, Ceramic Wall Tile, Glass Block, Glass Bottles, and Jewelry

I have never been very successful at drilling glass; however, this bit has done the trick. I build wind chimes and use old abandoned glass insulators as the striker. In order to properly use the insulators, I must drill a small hole through the center so I can suspend the wind catcher. This drill bit has been successful where others have failed. I have drilled several insulators and it seems as new as ever.

This is a good diamond bit for use in a Dremel tool. It’s not the fastest cutting bit I’ve used, but using the included cutting oil helps a little. I actually found it worked better with my drill so I could put more pressure on it. I had to cut 6 holes in ceramic wall tiles and needed them to be a little bigger than it’s 1/8″ diameter and the nice thing about diamond bits that have lots of diamond around the shaft is you can wobble it to make thew hole a little bigger.

I slumped some glass jars and drilled holes in them this afternoon. I was able to drill 12 1/2 holes before changing the bit. using my cordless Dremel tool, I created a cut in the glass for the hole, I held my drill at straight up and submerged each of the pieces into water and drilled through one piece at a time to finish.

This 1/8″ dia. diamond core drill worked perfectly, using a hand held variable speed Dremel Grinder operating at the mid-range RPM. The kiln fired glass artwork was submerged under water. Start the hole with the grinder and diamond drill at a 30 to 45 degree angle to break the glaze surface and then position the Dremel/diamond drill perpendicular to the work surface. The end results was excellent.