The Axe
The axe came in many varieties, like the sword, and had many uses such as fighting or cutting logs. For fighting, the axe could be used with one or two hands and some can even be thrown at an enemy. The axe was cheaper than the sword and much easier to make because just the head was made from metal, and they soon became more available than swords. The axe was used to hack at the enemy rather than slice or stab. The axe easily cut through heavy armor that swords could not penetrate and soon became just as needed as the mace on the battle field.
http://en.wikipedia.org/wiki/Battle-axe
http://www.historicalweapons.com/otherweapons.html