Dewalt DW8427 7" x 0.0625" x 0.875" High-Performance Cutting Wheels, replace wheels less often with Temper Point TM grains that are built tougher to maintain razor sharpness for up to 50% longer life*. Get a longer lasting cutting edge that resists wear-and-tear with enhanced adhesion between the coated grains and resin. Efficiently cut a wide range of metals including carbon steel, stainless, and nickel-based alloys with the wheels" thin designs and high-grain concentration. These wheels are exceptionally durable and are built with 2 sheets of fiberglass for optimized strength to help to reduce breakage.