7-1/4", 18 Tooth Carbide Tipped, Marathon Circular Saw Blade, 5/8" Universal Arbor, 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 Equal Amount Of Wood, Blade Flatness Ensures Close Tolerances, Carded.