IEY4013 Features: * Drill bit * Rotary percussion * For drilling in concrete, stone, brick, and cinder block * Specially formulated carbide tip withstands impact from hammer drills * Rugged steel body, fully hardened to 45 RC for extra strength * For use in hammer drills with rotary and hammer settings * 1/4"" shank * 3-1/2"" flute length * 6"" overall length Dimensions: * 1/4"" diameter