DEWALT DW3185 8-1/4-Inch 40T Precision Framing Saw Blade Tougher tungsten carbide stays sharper longer Specially formulated anti-stick coating minimizes friction and gum-up for smoother cuts Thin kerf for fast and smooth cutting action Ribbed heat vents allow blade to run cooler, reducing blade flexing and binding Features a 5/8-Inch arbor with diamond knock-out