12pcs/Box Vacuum Brazed Diamond Core Bit Set Hole Saw Porcelain Tile Granite
M14 Diamond Drill Bit for Porcelian Tile Marble 6-110mm 12pc Adapter Chamfer Bit. M14 Diamond Finger Bit Vacuum Brazed Mortar Removal for Stone Bricks Masonry. 12pcs/box Diamond Core Drilling Bit Set Triangle Shank Hole Saw Cutter for Tile.