8-1/4" 40T Carbide Thin Kerf Circular Saw Blade Applications: Framing, trim carpentry and remodeling Features: Tougher tungsten carbide stays sharper longer Anti-stick coating reduces friction and gum-up Thin kerf for smoother cuts Ribbed heat vents allow blade to run cooler, reducing blade flexing and binding All blades feature 5/8" arbor with diamond knock-out