Backed by an ultra-thin kerf blade for fast cutting and helps to increased battery life, DeWALT® Metal Cutting™ saw blades are built to power through aluminum and non-ferrous metals, including brass and copper. Heavy duty tungsten carbide tips maintain sharp edge for long life and an anti-stick rim helps to reduce friction and gum up. DeWALT® DW7666 Thin Kerf Circular Saw Blade, 12 in dia x 0.079 in Thick, 1 in Arbor, Aluminum Blade, 80 Teeth