DEWALT DW4524 Grinding Wheel, Applicable Materials: Masonry, 4-1/2 in Dia, 1/4 in Thick, 7/8 in Arbor, 24 Grit

Powered by a high concentration of 100% virgin silicon carbide grain, DeWALT-type 27 masonry grinding wheels deliver aggressive grinding action and smooth-running wheels. 3 full sheets of fiberglass help to increase durability and safety. A proprietary design ensures long wheel life.