DEWALT DW4429 Grinding Wheel, 4 in Dia, 1/4 in Thick, 5/8 in Arbor, 24 Grit, Very Coarse, Silicone Carbide Abrasive

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.