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. 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.