Precision Diamond Coated Countersink Drill Bit – 8MM Granite Core Drilling Set
Engineered with industrial-grade diamond segments for ultra-smooth, chip-free drilling in granite, marble, and hard tile. Electroplated bonding ensures extended durability and heat resistance. Features a reinforced steel shank for superior stability in high-speed power tools (drills, angle grinders). Laser-calibrated flute design minimizes friction and debris buildup. Ideal for professional countertop installations, bathroom renovations, and precision stone crafting. Includes anti-slip hex base for secure chuck gripping. Wholesale bulk pricing available – global logistics support for contractors and hardware distributors.