IVY Classic 36032 Premium Swift Cut 7-1/4-Inch 14 Tooth Nail Cutting Carbide Circular Saw Blade with 5/8-Inch Diamond Knockout Arbor, 1/Card Heavy duty professional hard body blade, Premium Swift Cut (Registered Trademark) Designed for cutting used lumber with embedded nails Triple chip ground C3 modified tungsten carbide teeth Reinforced shoulders stabilize carbide against impact Arbor: 5/8-inch diamond knockout, negative 6-degree hook, .098-inch kerf