Circular Saw Blades. Metal Cutting Blade. Carbide Tooth Metal Cutting Blades. Nitro Teeth With A Triple Chip Grind Delivers Superior, Clean , No Burr Cuts. Fully Hardened Alloy Steel Body Lengthens Blade Life In Tough Metal Cutting Applications. Thin Kerf Design Cuts With Less Drag Giving The User More Cuts Per Charge. Anti-Kick Back Tooth Design For Added Safety. This Blades Nitro Carbide Teeth Will Last 60X Longer Than Blades With Standard Carbide Teeth. For Dry Cutting Ferrous Metals Including Steel Studs, 1/8″ Angle Iron, 1/8″ Flat Bar And Channel Stock.