The Milwaukee Metal Circular Saw Blades are specifically designed to exceed contractors' expectations for blade life， cut quality， and speed in the most demanding metal cutting applications - without a lubricant. The metal cutting circular saw blades feature hand-tensioned hardened alloy steel bodies. This extends your blade's life and delivers you the highest quality cuts available. The blades feature Carbide-Tipped Teeth with Alternate Top Bevel grind allowing you to shear through metal delivering you burr-free， cool-to-touch cuts.