Concrete Screw Drill Bit | Drill Bits for Concrete
GCS-17 "BLUE" Concrete Screw Kit with Drill Bit | Groh Sales LLC
CONFAST 1/4" x 1-1/4" Blue Flat Phillips Concrete Screw Anchor with Drill Bit for Anchoring to Masonry, Block or Brick (100 per Box): Amazon.com: Industrial & Scientific