NA 121
DIN Standards Committee Tools and Clamping Devices
Standards
[Withdrawn]
ISO 3318
ISO 3318
Assembly tools for screws and nuts; Open-end double-head engineers' wrenches, double-head box wrenches and combination wrenches; Maximum widths of heads
Title (German)
Schraubwerkzeuge für Schrauben und Muttern; Doppelgabelschlüssel (Mechanikerschraubenschlüssel); Doppelringschlüssel und Kombinations-Schraubenschlüssel; maximale lichte Weite der Köpfe