DIN Standards Committee Tools and Clamping Devices
ISO 2725-1
Assembly tools for screws and nuts - Square drive sockets - Part 1: Hand-operated sockets
Schraubwerkzeuge - Steckschlüsseleinsätze mit Innen-Vierkant - Teil 1: Handbetätigte Steckschlüsseleinsätze - Maße
Responsible national committee
Responsible international committee
ISO/TC 29/SC 10 - Assembly tools for screws and nuts, pliers and nippers