Premium 25mm Diamond Core Drill Bit for Granite, Marble & Porcelain
Ultra-durable cobalt-bonded diamond grit for maximum cutting efficiency and extended lifespan. Precision-engineered with laser-welded segments for flawless hole drilling in hard materials. Perfect for granite countertops, marble floors, porcelain tiles, and stone sinks. Ideal for professional installers and DIY enthusiasts. Cooling slots prevent overheating, ensuring smooth operation. Universal shank fits most standard drills. Global wholesale pricing – bulk discounts available. Stock up on high-performance tools at unbeatable rates.