WORKSITE 5 Piece Masonry Drill Bit Set.  High-Speed Bit. Suitable For Drilling In Concrete Surfaces. Can Be Used on Glass/Brick/Plastic/Cement/Wood/Tile/EtcHigh Quality Multi-Purpose Drill Bit Set. Tipped For Prolonged Life And Heavy-Duty Use. Can Be Used In Standard Drills. – XMDB05S