Diamond coated and designed for all types of tile including porcelain. No water required. Can be used directly onto any angle grinder (M14 thread) or any mains powered drill using M14 Chuck Adaptor. This 6mm Wax Filled Diamond Tile Drill is to be used on Porcelain, ceramic tiles & Hard Materials. No Water Required. To be used on Angle Grinder or Mains drill with Hex Adaptor. Part number 57587 on High Speed Mains Drill.