DRILLGOOD Reinforced Drill Bit SetThe Ultimate Concrete Busting Bit Set Powerful, Precise, and Built for Brutal Surfaces! "I swear, drilling concrete was just the biggest pain in the hole until I discovered this set. Each of the drill heads is cross hexed, and it gets in any concrete with no fussgoes through it like an arrow through a watermelon!" Sean T. Built for Brutal Surfaces Forget snapped bits and burned out drills. DRILLGOOD is engineered with a four blade carbide tip and