Circular Saw Blades. Contractor Series Thin Kerf Circular Saw Blades. Blue Coat Surface Treatment Resists Heat And Build Up For A Longer Blade Life. Ideal For Wet Lumber. C3 Micro grain Carbide Teeth Resists Wear, Even In The Hardest Wood For A Longer Blade Life. Lasts 5X Longer Than Standard Carbide Teeth. Fully Hardened Blade Body With Heat Expansion Slots And Vents Resist Warping During Tough Cutting Applications. Anti-Kick Back Tooth Design For Added Safety. Combination Blades. Accurate Rip And Cross Cuts.