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With the 3-piece Bosch RobustLine Easy Dry Best for Ceramic diamond drill bit set, you can drill clean, accurate holes in hard tiles without the mess of external water cooling. The integrated cooling system inside the shank lets you dry drill smoothly from soft wall tiles to very hard porcelain stoneware. Robust, vacuum-brazed diamond grit delivers high wear resistance, preventing expensive tiles from cracking or chipping during bathroom, toilet, or kitchen installations. Equipped with essential diameters of 6 mm, 8 mm, and 10 mm for standard 13 mm chucks, this set gives you full control and dependable rotary performance on every project.