What is a real Japanese sword?
There are four factors to determine a real Japanese sword. o First of all, an authentic sword should have undergone forging (heating, hammering, folding, tempering, quenching) which does not happen in mass produced swords. One sword alone could take a long time in forging. o Second is a full tang or its blade reaches at the end of the handle. Decorative replica swords are not necessarily full tang but for functional swords, this is needed for foundation, support, and durability in every swing and attack. o The sword must be made of carbon steel. Aluminum or stainless steel is not strong enough to handle the impact in cutting and sword fighting. o A real Japanese sword should not be heavier than 3 lbs. Remember this is handled during combats, so it would be impractical to bring heavy weapons.
