For The Toughest Cast Removals;Nitrus delivers the fastest cutting, longest life products with a breakthrough Carbide Technology;Our Nitrus Carbide blades are engineered to dissipate heat better than any other demolition blade for faster cutting;5x life versus carbide teeth blades in cast iron;Fastest, Smoothest cuts in cast iron;Optimized Performance in, hard cast iron, stainless steel, black pipe, rebar, & angle iron;1” tall blade body;Large tooth gullets for easy material ejection;Available in 1, 3 and 5pks;Made in USA;Available in 6", 9" and 12" lengths in 1PKs, 3PKs, and 5PKs