$63.99 Bosch 1/2 in. Multi-Purpose Tungsten Carbide Drill Bit for Drilling Tile, Masonry, Wood, Metal 
Stone Concrete Drilling 10mm Tip Masonry Drill Bit Tool - Walmart.com - Walmart.com
Bosch 1/2-in x 6-in Round Hammer Drill Masonry Drill Bit for Concrete at Lowes.com
