The broad machete is a unique weapon in Fallout: New Vegas. It was a pre-order exclusive close-combat weapon, included with the Tribal Pack, before the release of Courier's Stash. It is significantly stronger than the normal machete favored by members of the Legion.
The broad machete has a unique world model and an appearance that sets it apart from other machetes; the bolo-style blade is well-traveled and well-honed, making it a more conventional machete as opposed to the makeshift design used by the Legionaries. It also has a unique Pip-Boy icon when selected. The broad machete has considerably higher DPS (especially at higher levels), and a higher base damage as well. These factors make it an excellent weapon for melee-based characters, especially early on, where the broad machete tends to outperform other melee weapons by a considerable factor. Its forward power attack is more akin to non-player character power attacks, as well.
Originally, the only way to acquire this weapon was by redeeming the code that came with the pre-order exclusive Tribal Pack. It can now also be acquired by purchasing the add-on, Courier's Stash.
Though the broad machete looks completely different to the machetes found in the main game, the Tribal Pack's promotional poster shows the character holding a plain machete.
The charge attack animation is the same as the legion assaults animation.