$60.99 Disston 120741 1/4 x 4-Inch Masonry Drill Bit - Walmart.com - Walmart.com
Square Hole Drill Bit 1/4 Hollow Chisel Mortiser Auger Carbon Steel 2pcs - Walmart.com
Hertel - 1/4 Drill Bit, Extra Length, Cobalt, Threaded Shank Drill Bit - 01778190 - MSC 
