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Extremely durable drill bit tip with Bosch Carbide technology. Lasts up to 10x longer than standard tile drill bits. Hex shank for maximum power transfer in standard 3-jaw drills and hexagonal screwdriver chucks. Ideal for drilling holes in bathroom tiles. Drills comfortably in tiles up to a hardness of PEI 5. To be used on first drill speed only (slow). Lasts up to 10x longer than standard tile drill bit Extremely durable drill bit tip with Bosch Carbide Technology. Hex shank for maximum power transfer in standard three-jaw drills and hexagonal screwdriver chucks. Ideal for drilling holes in bathroom tiles, e.g. to install a shower partition wall; and drilling in roof tiles, without the need for cooling. Drills comfortably in tiles up to a hardness of PEI 5. Best for interior fitters and roofers: long lasting and practical. Diameter (D) mm: 6,00, Total length (L2) mm: 90