A collection of sockets, typically organized in a case or tray, encompassing both 1/2-inch and 1/4-inch square drives, and adhering to the metric system of measurement, provides a versatile toolset for various mechanical applications. These collections often include a range of socket sizes, extensions, and other accessories like ratchets and adapters.
The availability of two drive sizes allows users to apply the appropriate torque for different fastener sizes and applications. Smaller fasteners benefit from the lower torque and finer control offered by the 1/4-inch drive, while larger fasteners requiring greater force are better suited to the 1/2-inch drive. Adherence to the metric system ensures compatibility with a wide range of internationally standardized fasteners. Such a comprehensive assortment promotes efficiency by minimizing the need for multiple tool sets.