4X life in rebar and 40% more life in concrete than competitive full head carbide bits * Faster drilling speed versus 2 cutter * Less Carbide Wear than 2 cutter means an end user is more productive with a single bit * Solid tungsten carbide head with four cutter geometry - extraordinary lifetime and high drilling speed in concrete and concrete with rebar - No jamming when hitting rebar - Optimized for heavy duty rotary hammers * Stress Optimized flute surface and geometry - For fast dust removal, high power transmission, and optimized stress behavior, no overstraining. * No jamming when hitting rebar and optimized for heavy duty rotary hammers * Stress optimized flute surface and geometry * Up to 4-times life in rebar and 40% more life in concrete than competitive full head carbide bits