![]() If you enjoy do-it-yourself projects, a drill bit set is indispensable. I probably needed a flatter and stiffer backing, as I also cracked the glass during one attempt - see the photo. Tile Drill Bits and Drill Bit Sets for Every Kind of Material. 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. 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. Innovative geometry allows bit to drill faster. It would be best to use a cordless drill or GFCI protected tool as keeping the surface of the pot slightly wet will help reduce any heat buildup. We recommend starting at a low RPM and steady pressure. High-quality carbide tip with reinforced head prevents bit cracking. The GT3000 Glass and Tile Bit set can be used with different tile material. A fine white powder is produced during the drilling. Precision tip solves bit wander and bit walking. 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. ![]() I used a Bosch hand drill running at 1300 RPM (max recommended RPM is 2000) and backed-up the glass with 3/4" plywood. I tested them on probably what is the toughest job - old thin window glass, drilling fairly close to an edge. This makes glass and tile drill bits ideal for. Holes are drilled fast and accurately in bottles, tile and ceramics. Glass and tile drill bits are able to cut cleanly through delicate materials such as natural stone, ceramics, and porcelain while minimising the risk of damage as the bit is coated with diamond pieces that act like sandpaper to rub holes in the material being drilled without cracking or breakage. These spear-style glass drill bits have a carbide head that will produce clean and precise holes in all types of glass and mirrors. Engineered with sharpened carbide, MILWAUKEE Glass and Tile Bits provide faster tile drilling than standard glass and tile bits. 1/4' Carbide Tipped Spear Point Drill Bit. 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. Glass and Tile Bit Set 3.0 (2) Write a review Our 4-Piece Glass and Tile Drill Bit Set features an exact start tip for clean holes and minimal bit walking in glass and ceramic tile. Most Bosch products are "things of beauty", and I have to say these drill bits are no exception.
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