The commonly used cable sizes are 0.81, 1.13, and 1.32.

These cable sizes are commonly used in applications where space is limited, and high-frequency signal transmission is required.
These cable sizes are typically associated with micro coaxial cables used for high-frequency signal transmission. They are often equipped with small connectors such as IPEX/U.FL, SMA connectors for optimal space utilization.
The choice of cable size depends on the specific requirements of the application, including signal frequency, power handling, and available space.