4-Inch Heavy Duty Yard Firm Diamond Grinding Cup Wheel – 12-Segment Turbo Disc for Concrete, Stone & Ceramic – No Assembly Required, Compatible with – Fast Surface Grinding for Construction, Renovation & DIY Projects, Grinder Power Tool, Concrete Grinding, Efficient Wheel, Goldcolored Metal Wheel, Construction Tools, Multisection Design, Highperformance Material, Stone Fabricators