Diamond Core Drill Bits for Tile, Porcelain & Stone

The best diamond drill bit depends on the tile material. For standard ceramic, a continuous rim or turbo diamond bit works well. For dense porcelain or granite, a turbo mesh or super hi-rim bit offers better performance. DI Tool's Shark Series Pro Bit and Turbo Porcelain Tile Diamond Bit are top choices for professional tile installers.

Diamond core drill bits are universally regarded as the best option for drilling into tile. They outlast carbide-tipped bits significantly and produce cleaner holes with less risk of cracking. For glass tile, a continuous rim diamond bit used with water cooling is recommended. Avoid standard masonry bits as they can shatter delicate tile surfaces.

Yes. Diamond core drill bits are specifically designed for dense materials like porcelain. Look for bits labeled for porcelain use, such as the Turbo Porcelain Tile Diamond Bit or the All-Surface Supreme Premium Diamond Blade. Using water as a coolant during drilling extends bit life and ensures a cleaner hole.

Wet cutting is strongly recommended for most diamond core drill bits used on tile, porcelain, and stone. Water acts as a coolant, preventing overheating of both the bit and the tile surface, which reduces the risk of cracking and significantly extends the life of the diamond bit. Some bits support dry cutting for limited applications.

DI Tool offers diamond core drill bits and hole saws in a range of sizes suitable for plumbing, electrical, and decorative applications. Sizes typically range from small diameters for fixture installations up to larger cores for drainage or pipe pass-throughs. Contact DI Tool at (800) 678-8006 for specific size availability.

Yes. DI Tool offers a dedicated Glass Tile Diamond Blade and compatible hole saws designed specifically for glass tile used in backsplashes and decorative installations. It is important to use a continuous rim diamond bit with water cooling when drilling glass tile to prevent cracking and achieve clean, chip-free holes.