Toa Tools were a number of weapons that were carried by any Toa. They were created during a Matoran's transformation into a Toa and are given for the Toa to use as Weapons to both defend themselves and to channel their Elemental Powers through.
The First Toa Tools were presumabely created for Toa Helryx upon her becoming a Toa. These were either created upon her creation as a Toa or crafted by Artakha after her creation. Although all Toa are naturally given weapons, upon their transformation from being a Matoran to becoming a Toa, Artakha contiued to create them for Toa.
However, Artakha's Brother, Karzahni later attempted to create Toa Tools by placing several within Toa Canisters that his Matoran Labourers created.
Most Toa Tools are either created alongside Toa when they are transformed. An example of this would be the Toa Metru as their weapons were created inside the Toa Suva from the energy of their transformation.
Other Toa Tools, such as those carried by the Toa Mahri, were already in existance. The Toa Inika's weapons were placed inside their Toa canisters upon the construction of them.
Most Toa Tools do not have any powers of their own. However, some Toa have been known to be an exception to this rule. An example would be the Toa Hagah Teams. Takanuva's Power Lance would be another example of this as it could amplify Takanuva's power.
Some other Toa Tools had different functions, such as the Weapons carried by the Toa Nuva and Toa Metru. For example, Toa Tahu wielded a pair of Magma Swords that he could connect to his feet to form a Lava Board.