ISO 2725-2:2017 specifies dimensions, designation, and marking of machine-operated "impact" square drive sockets with operating end having a hexagonal or double hexagonal form in accordance with ISO 1174‑2.

NOTE Machine-operated "impact" square drive sockets covered by this document are the ones identified in ISO 1703 under reference numbers 2 2 02 01 0.

ISO 2725-2:2017 does not cover technical specifications for these products. Technical specifications are given in ISO 1711‑2.