Wet Concrete diamond core drill bits Dia 102mm working length 350mm
17pcs/set Porcelain/ Tile Diamond Core Drill Bits 5/8-Inch-11 Connector from 1/6 Inch to 4 Inch each size 1pc – SHDIATOOL
DT-DIATOOL Diamond Core Drill Bit Set Tile Hole Saw 6/8/10/16/19/51/65/102mm + 2 inch Diamond Chamfer Bit 5/8"-11 Thread for Porcelain Tile Ceramic Granite Marble Brick ConcretePack of 9 - Amazon.com
6-102mm Welded Hole Saw Diamond Core Drill Bit Angle Grinder for Marble Granite | eBay
SHDIATOOL Diamond Core Drill Bits 1-1/4 Inch for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws 32mm - Walmart.com
VEVOR 8" Wet Diamond Core Drill Bit Hole Saw for Concrete Brick & Hard Material | eBay