Description Built for quick, clean cuts, DEWALT Type 1 Metal Cutting Wheels feature a thin .045" wheel design for quick, burr-free cutting and 2 full sheets of fiberglass for added durability and safety. A soft aluminum oxide grain expedites cutting.Thin .045" wheel design for fast burr free cuttingSofter Aluminum Oxide Formulation provides faster cutting2 full sheets of fiberglass for durability and safety WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov