GB/T 3390.2-2013
ActiveHand operated socket wrenches - Driving squares
手动套筒扳手 传动方榫和方孔
Application Summary AI generated
This standard specifies the dimensions, tolerances, and technical requirements for the driving squares and square holes on hand-operated socket wrenches. It is applied in the manufacturing and quality inspection of socket wrench sets used in automotive repair, machinery assembly, and general maintenance to ensure interchangeability and secure fit between sockets and handles.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.