Abstract / scope
Gives minimum values for Rockwell hardness and torsinal strength which should be satisfied by hand-operated open jaw wrenches, ring wrenches and socket wrenches.
Outils de manoeuvre pour vis et écrous — Spécifications techniques — Partie 1: Clés de serrage et douilles à main
Gives minimum values for Rockwell hardness and torsinal strength which should be satisfied by hand-operated open jaw wrenches, ring wrenches and socket wrenches.