Metal 5-Inch Dust Shroud for Grinders / Concrete Grinding Diamond 6 Pieces 4.5" / 4-1/2 Inch Cup Wheels Toolsmart (a) 6 Pc of 4.5" Diamond Super Wide Segment Turbo Row Grinding Cup Wheel with 5/8"-11 Thread arbor. (b) 1 Piece of the 5" Metal Dust Shroud.