IVY Classic 36482 7-1/4-Inch 6 Tooth Fiber-Cement Cutting Carbide Circular Saw Blade with 5/8-Inch Diamond Knockout Arbor, 1/Card Designed for cutting all fiber-cement boards including Hardiplank, Hardibacker, Durock and CertainTeed. Flat top ground large C3 modified tungsten carbide teeth, Ripcross (Registered Trademark) Deep gullets increase material removal and provide cleaner, more precise cuts Single-plank cutting blade at a lower price for small to medium cutting jobs. Use IVY Classic 36496 7-1/4-inch Poly-Crystalline Diamond Blade for larger jobs. Arbor: 5/8-inch diamond knockout, Kerf: 0.071-inch, Hook: 12-degree