Drill America 10-Piece 18-in Alloy Steel Masonry Drill Bit for Rotary Drill | DAM18X3/8P10

Designed for use for drilling in brick, concrete and sandstone. They are engineered with wide flutes to provide fast dust removal in softer materials. Brazed to tough steel bodies and are larger than the nominal drill size to provide clearance for installation of anchor screws, expansion shields and toggle bolts. Designed for use in portable electric drill. Round shanks allow use with a wide variety of tool holding systems. Carbide-tipped tools feature cutting edges of carbide for wear resistance and a steel shank for toughness.