Introducing the Stinger Black Turbo Core Bits When drilling through some of the toughest surfaces in the industry, you need a tool that doesn't just get the job done—it makes it easier, faster, and cleaner. That's exactly what the Stinger Black Turbo Core Bits were engineered for. Designed specifically for professional fabricators, these core bits combine turbo-segmented cutting edges with vacuum-brazed protection, giving you the perfect balance of speed, control, and durability. Every hole is drilled with precision, reducing blowout on the surface and minimizing chipping, even on fragile edges. Whether you're working in granite, engineered stone, quartz, or other dense materials, the Stinger Black Turbo Core Bits are built to deliver consistent performance job after job.