- when in Construction mode: Used to construct multi-blocks and orient the gearbox.
- when in Deconstruction mode: Used to safely deconstruct multi-blocks.
- Shift + Right-Click to change modes.
When right clicked, in construction mode, on a valid Multi-Block structure, it will construct it.
Multi-Block structure parts will say in their tooltips that they require the use of a Wrench.
If in deconstruction mode a valid Multi-Block structure will instead be instantly deconstructed into its parts.
To cycle modes, Sneak and Right-Click with your wrench.