Precision Brazing Hole Opener Drill Bits for Porcelain & Stone

Premium tungsten carbide tips with reinforced brazing technology ensure ultra-durable cutting performance. Specially designed for porcelain, ceramic tiles, marble, and granite with zero chipping or cracking.

Laser-calibrated spiral grooves enable fast debris removal and 30% cooler drilling. Diamond-coated cutting edges maintain sharpness through 500+ holes in hard materials.

Perfect for professional tilers, plumbers, and DIY enthusiasts installing faucets, pipes, or bathroom fixtures. Compatible with standard drills and rotary tools.

Worldwide bulk sourcing guarantee: factory-direct pricing with MOQ flexibility. Ships in crush-proof packaging with 100% quality inspection.