$62.99 EDiamondTools 6-1/2 in. x 14 in. Wet Diamond Core Bit for Concrete and Masonry-WBP0612A4 - The 
Tapcon 1/2 in. x 10 in. SDS-Plus Drill Bit-11495 - The Home Depot
Steel Dragon Tools® 1-1/2 (38 mm) x 6 Dry Diamond Masonry Core Drill Bit - Walmart.com
