DEWALT DW8424H 4-1/2-Inch by 0.045-Inch by 5/8-Inch to 11-Inch Metal Cutting Wheel, Pack of 1 Thin 0.045-Inch wheel design for fast burr free cutting Proprietary aluminum oxide grain combination for aggressive cutting action Proprietary material mix ensures durable long life wheels 2 full sheets of fiberglass for durability and safety