This diamond drill bit is designed for hard materials and delivers reliable, clean holes. Key benefits Waxlubricated cooling: The bit is filled with a wax lubricant that melts during drilling to lubricate and cool the cutting edge. Adding water provides extra cooling and can extend bit life. Fast, durable drilling: Diamond coating boosts drilling speed and wear resistance. Broad compatibility: Round handle is suitable for use with most machines. Precise and clean results: Vacuum brazing diamond technology enables accurate, clean holes in challenging materials. Material and performance Suitable for hard materials such as porcelain, tiles, ceramics, and marble. Designed to provide smooth cutting and long service life in demanding applications. Use scenarios Drilling precise holes in ceramic or porcelain wall and floor tiles for outlets, fixtures, or hardware. Creating mounting holes in marble countertops or tile surfaces during renovation. Installing hardware in ceramic or limestone surfaces where clean, accurate holes are required.