$60.99 Amazon.com: ITW BRANDS 11247 5/32x4-1/2-Inch Concrete Drill Bit: Home Improvement
Bosch 1/2 in. Multi-Purpose Tungsten Carbide Drill Bit for Drilling Tile, Masonry, Wood, Metal 
Bosch 1-1/2 in. x 24 in. x 29 in. SDS-max Speed-X Carbide Rotary Hammer Drill Bit for Concrete 
