6-30 MM 10 pcs glass ceramic marble Diamond tool drill bit hole saw set**Size**:- 6mm outside diameter- 8mm outside diameter- 10mm outside diameter- 12mm outside diameter- 15mm outside diameter- 16mm outside diameter- 18mm outside diameter- 20mm outside diameter- 22mm outside diameter- 30mm outside diameter Package Includes:1 x 10 pcs 6-30mm Diamond Coated Core Drill Bit Tile Marble Glass Ceramic Hole Saw