ISO 2725-1:2017 specifies dimensions, the designation, and the marking of hand-operated square drive sockets with operating end and having a hexagonal or double hexagonal form in accordance with ISO 1174-1.
NOTE Hand-operated square drive sockets covered by this document are the ones identified in ISO 1703 under reference numbers 2 1 02 01 0.
ISO 2725-1:2017 does not cover technical specifications for these products. Technical specifications are given in ISO 1711-1.