Drill America shank hammer bit is especially suited for drilling in stone or concrete. Carbide-tipped tools feature cutting edges of carbide for wear resistance and a steel shank for toughness. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.