D605 Diamond Core Bits Blue Ceram Sutton Tools Blue Ceram Diamond Core Bits are the professionals choice tile drill. They feature diamond segment technology, enabling the bit to be dressed for optimal performance and long life. Suits non-hammer action portable power drills. For drilling porcelain, monocottura, marble, glazed, terracotta, sandstone & standard ceramic tiles. Cutting speed with water <3000 RPM *Blue Ceram diamond core bits drill oversize to allow drilling and fixing into material below the surface without chipping the tile. Core cavity for fast material extraction 10mm hex shank for positive grip, preventing slippage in chuck Cutting speed with water <3000 RPM Diamond Segment tip for long life. Can be dressed for optimal performance Technical Specs: Diameter 8 mm Flute Length 20 mm O/A Length 55 mm Shank 10 mm Hex