The Tecpatl was a 10 inch knife. Its handle is made of bone while the blade of the weapon is made of Obsidian stone, which is known to be sharper than steel because of its finer grain structure. Traditionally, it was used for human sacrifices by the Aztecs. But, it can be used as a side arm during a battle. It was also the short range weapon of the Aztec jaguar warriors. Although it has limited use on the battlefield, the Tecpatl's sharp edges would have been an effective sidearm. [1]