We designed these new Super Alloy (Optional) Blades for Aurora Fire Starters that are shipped to US Soldiers and for customers that want the absolute best that money can buy. Don't be fooled by our competitors. These new blades are constructed using a unique combination of tungsten, carbide, and cobalt that is superior to all other striking blades on the market and MADE IN THE USA ! These new blades must be cured in special ovens during manufacturing and can only be cut using a diamond blade. These Super Alloy Blades will NEVER DULL or need to be sharpened! We have completed testing on these new blades and they are great! An Aurora Fire Starter equipped with this blade is unbeatable! Includes one extra stainless steel mounting screw and mounting instructions. Made in USA!