The Flex 252.452 5-inch Diamond Segmented Grinding Disc is great for leveling screed. An accessory for the FLEX cement grinder, the Flex 252.452 is great for sanding down sandstone. Features: * Screed Jet for leveling screed. Accessory for the FLEX cement grinder for leveling and removing screed * Works fast because of strong diamond segments that are embedded in rip-proof elastic support linings What"s In The Box: * Flex 252.452 5-inch Diamond Segmented Grinding Disc