DEWALT 1/2 in. Steel Brad Point Drill Bit DW1714 - The Home Depot
Klein Tools 53720 Flex Bit Auger with Screw Point, 1-Inch x 54-Inch Long Flexible Drill Bit / Fish Bit for Pulling Wire Behind Walls - Collated Screws - Amazon.com
Milwaukee 48-13-1120 1-1/8 in. x 6-1/2 in. Auger Bit