### Flexible combination of extension rods
The universal joint rod can be combined with extension rods of different lengths. Users can select the appropriate length of the extension rod according to the depth and spatial position of the bolts and nuts in actual work, further extending the operating distance. This allows for more precise access to the working position, meeting the usage requirements under different working conditions.

### Enhanced spatial adaptability
Compared with ordinary 1/2 hexagonal pneumatic sockets, the design with a universal joint rod performs much better in confined spaces. Even in areas with awkward angles, narrow spaces, and obstacles, it can easily bypass the obstacles by flexibly adjusting the angle of the universal joint rod, enabling operations on the target bolts and nuts. This greatly expands the usable spatial range of the tool.

### Stable power transmission
During pneumatic driving, the structure of the universal joint rod is optimally designed to ensure stable power transmission. Even when the angle changes, it can effectively transfer the torque output by the pneumatic tool to the socket head, ensuring the smooth progress of tightening or loosening operations. There will be no power loss or slippage due to angle issues.

### Convenient multi - angle operation
Without changing the holding direction of the pneumatic tool, the operating direction of the socket can be changed through the universal joint rod. This is very beneficial for situations that require continuous operation at a specific angle. Operators don't need to frequently adjust the holding posture of the tool, which reduces physical fatigue and improves work efficiency and accuracy at the same time.