IF you use it, it won't rust. Not being a turd here, but honest. I have my beloved Negrito Hunting Bolo that I have talked about many times. IF it ever started rusting (when it was relatively new) and started rusting I would just jab it into the ground a half dozen times or so all the way to the hilt, wipe it on a cloth and sheath it. It finally got where it is VERY rust resistant. It is nothing more than a knife made from a vehicle spring and sharpened. NO extra heat treat of any kind. Just shaped, sharpened and ya got a knife.