The Alpen 8.0mm Keramo Extreme 2pc Set provides two high-quality tile drills ideal for tackling hard tile materials. Brand : Alpen Set Contents : 8.0mm Tile Drills (2 pieces) 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