ITW BRANDS 11248 3/16x4-1/2-Inch Concrete Drill Bit

Tapcon 3/16" x 4-1/2" Concrete Drill Bit. The Tapcon drill bit is a masonry drill bit with a carbide tip to ensure the precise drilling of pilot holes when installing anchors. With its toughness and durability, it drills in harder concrete and produces fewer head snaps. The drill bit is coated in climaseal to provide corrosion resistance.