Diamond Mortar Raking Bit Vacuum Brazed Finger Bit for Stone Bricks Ø7.2mm/8mm. 2pcs 7.2x74mm Vacuum Brazed Diamond Mortar Raking Bit Stone Brick Angle Grinder. Dry Diamond Drilling Core Bits 6mm-75mm Hole Saw Cutter for Ceramic Tile M14.
eBay