Irwin Marathon 7-1/4 in. D X 5/8 in. Carbide Tipped Circular Saw Blade 18 teeth 1 pc

New and improved design. Thin Kerf for faster, cleaner cuts. Heat vents reduce heat that causes build up & pitch. Precision honed C3 tungsten carbide tips hold their longer. Round shape means each tooth cuts uniform equalamount of wood. Blade flatness ensures close tolerances.