TCT Tile and Glass Drill Bit, 4.0 x 79mm - 10054 - Draper 10062, The Draper Tile and Glass Series are precise drill bits with a spear-shaped tip designed for drilling tiles, ceramics, marble, glass and mirrors.Made from carbon steel with a professionally ground tungsten carbide tip for a faster cut and longer service life.Double flute design prevents material from clogging the hole, providing rapid stock removal.Fitted with a non-slip shank to prevent slippage.The TCT tip and double flute mean these drill bits are also suitable for use on brick, concrete, stone, slate, wood and hard plastics.Compatible with a standard 10/13mm chuck. Draper 10062 TCT Tile and Glass Drill Bit, 6.0 x 101mm