New Archery Products Spitfire 3-Blade Replacement Blades, 60-258: * Fly straight with pinpoint accuracy and perform better than any other mechanical broadhead thanks to our ultra-sharp Diamize blades * Renowned N.A.P. durability ensures that the Spitfire will stand up under the toughest conditions * The practice blades mean you can save your super-sharp blades for the big day * Patented micro grooved ferrule greatly increases flight accuracy and penetration power * Diamize sharpening process creates the sharpest blades in the industry for massive hemorrhaging and knock down power