Using this Femunden sheath knife is easy. For nailing wood chips, hold the knife firmly by the olive - wood handle and strike with a bit of force. When cutting cured sausages, use a smooth slicing motion. To start a fire, take the fire starter from the sheath pocket and use the 90 - degree area on the blade back. When hanging a coffee pot, make sure it's secure on the blade area. As for maintenance, after each use, clean the blade with a dry cloth. If it gets wet, dry it thoroughly to prevent rust. Keep the leather sheath away from excessive moisture to maintain its quality. Also, don't use the knife for tasks it's not designed for, like prying open hard objects, to avoid damage.