The Alpen Keramo Extreme 6.0mm Tile Drill delivers precise and clean drilling in hard tiles like porcelain and granite. Brand : Alpen Size : 6.0mm Application : Suitable for all tiles, especially porcelain and granite Machine Compatibility : Designed for cordless machines, 18V combi drills (rotary only) Optimum Performance : Use low-speed setting with firm pressure Durability : Natural cooling between holes extends drill life