DEWALT 3/32 In. metal cutting and notching wheels have a high performance aluminum oxide grain for long life and high rate of material removal. They have a high grain concentration for aggressive grinding action and smoother running wheels. The proprietary material mix ensures durable long life wheels and they have 2 full sheets of fiberglass for durability and safety. These wheels are ideal heavy-duty cutting and notching of ferrous metal (steel, carbon pipe, etc..) and tack weld removal.