1/4"HEX Multi-Material Drill 5.5x150mm by Milwaukee. Designed for use with impact drivers and all types of 3 jaw chuck tools like rotary drill/drivers and percussion drills. Hex shank drill bits. Tungsten carbide tipped (TCT) drill bits allow drilling into concrete, bricks, roof tiles, aerated concrete blocks, thin metal, aluminium, soft to medium hardness ceramic tiles, all wood types and PVC. White flute to identify the drill bit easily in the user's tool box. Milwaukee multi material drills allow drilling different materials with one drill bit. They are available in different diameters and lengths. Will fit in an impact driver or drill. The drill bits come with a white flute to allow users to identify the bits quickly in their toolboxes.