FAST SPIRAL ROTARY MASONRY BIT: Designed for drilling in masonry, block and brick with a rotary drill, providing fast drilling and long life SINGLE-FLUTE DESIGN: Provides fast material removal CARBIDE HEAD: Delivers long life in masonry applications PRECISION MANUFACTURING: Designed to help eliminate bit walking HIGH-SPEED MODE: Delivers performance in cordless high-speed mode MASONRY APPLICATIONS: Engineered for masonry, block and brick ROTARY DRILLING: Designed for rotary drilling; not for hammer drilling