|Function||Channeling Elemental energy, melee combat, transportation|
|User(s)||Toa Metru Nokama (formerly)|
The Hydro Blades were Nokama's Toa Tools as a Toa Metru. She used them to channel her Water power. The tools also helped her to swim through the water more quickly. The blades can also deflect attacks by spinning them. She could also use them as grappling hooks.
- In BIONICLE Heroes, Hydro Blades are the second weapons Hahli uses. They can be upgraded to the Laser Harpoon.