Series 20 7-1/4" 18T Nail Cutting Circular Saw Blade The DeWalt series 20 7-1/4" 18t nail cutting circular saw blade is an extremely durable and useful attachment. Use this to increase your efficiency and decrease your work time. Superior build quality means you will be using this bit for years with minimal wear and tear. A must have for any professional or do-it-yourselfer. Features: Rock Carbide Teeth provide maximum resistance for longer life Flush ground teeth and reinforced shoulder for enhanced durability Anti-stick rim reduces friction and gum-up Blades feature 5/8" arbor with diamond knock-out Specifications: Diameter: 7-1/4" Teeth: 18 Arbor Size: 5/8 rd Hook Angle: +15 ° Kerf: .071" Plate Thickness: .045" Tooth Grind: ATB rpm: 7000 DEWALT is firmly committed to being the best in the business, and this commitment to being number one extends to everything they do, from product design and engineering to manufacturing and service.