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. Softer formulation for faster cutting. 2 full sheets of fiberglass for durability and safety. Proprietary material mix ensures durable long life wheels. Built for quick, clean cuts.