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Drilling Bit Sets for making holes in glass or tile are available for such needs and are being produced and marketed by a number of manufacturers. The Stanley ST-02325 4-Piece Glass and Tile Drill Bit Set has 1/8-inch, 3/16-inch, 1/4-inch, and 5/16-inch hex shank glass and tile bits. The tools have a high-grade tungsten carbide tip for drilling into glass and tile. These bits are required for drilling in glass, tiles, ceramics, mirror glass and porcelain. Tile Bits for drilling ceramic tiles and glass have a ground tungsten carbide tip. |