![]() ![]() ![]() I probably needed a flatter and stiffer backing, as I also cracked the glass during one attempt - see the photo. 1-48 of over 10,000 results for 'tile glass drill bit' RESULTS Amazon's Choice BOSCH GT2000 4-Piece Carbide Tipped Glass, Ceramic and Tile Drill Bit Set, silver 2,878 -5682718. Our heavy-duty core drills can drill up to 10-inch cores. In my test, I did get some concentric fractures on the backside of the glass, kind of like when a bullet passes through window glass. United Rentals stocks sturdy yet comfortable handheld core drills that can remove cores with up to a 4-inch diameter. ![]() You will also have to be patient and use fairly light pressure. By the way, these bits are not intended to be used on any kind of stone, such as marble - drill glass and ceramic tile only. We also stock Champion Cutting Tools Porcelain ánd glass tile drills. A fine white powder is produced during the drilling. Home / Carbide Drill Bits / Glass, Porcelain Tile, and Carpet Drills Glass, Porcelain Tile, and Carpet Drills Builders Depot Stocks Carpet, Glass, Porcelain and VCT Tile Drills. I can confirm that holding the bit fairly close to perpendicular does in fact easily keep the bit from "walking" when starting the hole, which is quite impressive on a hard flat surface like glass or ceramic tile. Read and understand all manufacturer warnings. I used a Bosch hand drill running at 1300 RPM (max recommended RPM is 2000) and backed-up the glass with 3/4" plywood. For cutting mirror, glass, china, ceramic tile and extra hard masonry materials (like marble and slate). I tested them on probably what is the toughest job - old thin window glass, drilling fairly close to an edge. If you examine them closely you can't help but notice their high quality "look" right down to the dark and clear character etching on the shafts. Most Bosch products are "things of beauty", and I have to say these drill bits are no exception. ![]()
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