Bosch Bulldog Xtreme 3/16" x 6" x 8.5" SDS-Plus Carbide Rotary Hammer Drill Bit is a professional-grade bit designed for heavy-duty drilling in concrete and rebar. It features a 4x life in rebar and 40% more life in concrete than competitive full head carbide bits, making it extremely durable and long-lasting. The bit is optimized for use with rotary hammers and has less carbide wear than 2 cutter bits, meaning users can be more productive with each bit. It also features a diffusion bonding technology that provides a stronger carbide bond for a longer lasting bit. The wear mark assures accuracy of hole diameter, while the centric conical tip guides the bit through concrete and provides rounder holes. The full head carbide tip lasts longer for faster drilling speed and less carbide wear, while the centric conical tip guides the bit through concrete and provides rounder holes. The wear mark alerts the user when the bit has worn to a level inappropriate for precision anchoring.