$54.99 New Drillpro 32mm/42mm 1/2 Inch Square Driver Firewood Splitter Drill Bit for Impact Wrench 
Bosch 1/2 in. Multi-Purpose Tungsten Carbide Drill Bit for Drilling Tile, Masonry, Wood, Metal 
ITW BRANDS 112495/32x4-1/2-Inch Concrete Bit, 4-Pack | eBay
