Check the listing for details. 4-1/2" Diamond Segment Grinding Wheel Disc for Concrete Stone Angel Grinders. Condition: New. Listed at 29.00 USD. Premium 4-1/2 Inch Diamond Turbo Cup Wheel for Grinding Concrete and Masonry 9 Segments 5/8"-11 Thread The Super-Plus quality cup grinding wheel offers the best lifetime available on market 4.5" 4-1/2 inch 9 Segments Turbo Cup Wheel Good for general grinding/ stock removal 5/8"-11 Thread center arbor For wet or dry use. For use on angle grinders Large Grinding segments w/ heat treated steel bodies which provides increases durability and wheel life Free Shipping & Returns: SAME business day shipping FREE 30-Day returns Contact us: Should you have any questions, please kindly contact us through eBay messaging service Click on the: "ask a seller a question" link on the listing page. We answer questions instantly. Thank you for shopping with DPT Diamond Tools!