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EDiamondTools 4-1/4 in. Dry Diamond Core Drill Bit for Brick and Block, 9.5 in. Drilling Depth, 1/2 in. Chuck Pilot Bit Adapter DBP0414A5ADJ11 - The Home Depot
DeWalt 5/16" Diamond Drill Bit - DW5574 | Pace International
1 1/4 Inch Diamond Hole Saw Drill Bit Ceramic Porcelain Tiles Quartz Granite Countertop Glass Bottle 1.25 inch Tile Drill Bit 1-1/4 inch Hole Cutter - Walmart.com
Kobalt 1-1/4 in Diamond Hole Saw in the Diamond Core Drill Bits department at Lowes.com
Joiner 6mm 1/4" inch Diamond Hole Saw Core Drill Bit Coated Masonry Drilling Cutter Glass Marble Tile Granite Pack of 20Pcs