Seen first in the 11th Century, The Ono was a hand-held battle axe. Made of Iron or bronze, these “hatchets” could reach up to 6 feet long in some instances. Used for close quarters combat, The Ono could inflict damage to some types of armor. The Axe heads were slightly angled with an opening made during forging for the handle. Unlike other European Axe heads, the handle shaft did not extend completely through. Not only Samurai, but foot soldiers of all classes used The Ono in combat.