Premium 50mm Diamond Core Drill Bit for Precision Drilling
Engineered with industrial-grade diamond segments for ultra-durable dry drilling on ceramic, marble, granite, and glass tiles. Laser-welded steel core ensures stability and heat resistance during high-speed operation. Perfect for professional tilers and DIY enthusiasts tackling hard materials without water cooling. Delivers smooth, chip-free holes in concrete, polished porcelain, and natural stone. Exclusive electroplated bonding technology extends bit lifespan, outperforming standard carbide bits. Ideal for plumbing, electrical installations, and custom tile projects. Buy wholesale at unbeatable prices—bulk orders available for contractors and resellers. Global shipping with guaranteed quality.