Check the listing for details. 4PK 7" Aggressive #20 Grit Pro Diamond Grinding Cup Wheel- PREMIUM QUALITY. Condition: New. Listed at 378.99 USD. 4PACK 7" Aggressive #20 Grit Professional Diamond Grinding Cup Wheel- PREMIUM QUALITYThis grinding cup wheel is perfect in construction for concrete surface preparation and tilt wall finishing at a fast removal rate. Great for removing of glues and adhesives as well. This is also great for fast grinding and rough deburring. This cup wheel is ideal for fast stock removal of concrete, stone and masonry, with very low dust. An excellent choice for finer finish grinding. Product Description: Quantity: 4PCS Quality: Premium Grade Condition: Brand New and Well Packed Diameter: 7" Segments: 24 Segments Arbor Size: 7/8"-5/8" Application: Concrete Grinding, Cleaning, Leveling and Coating Removal Cutting Method: Wet or Dry Item in stock, well packed and fast sending + tracking = Buy with confidence! Quality Assured! 100% Satisfied Customers!