NA 121

DIN Standards Committee Tools and Clamping Devices


Pliers and nippers - General technical requirements (ISO 5743:2021)


The standard contains the general technical requirements for gripping and cutting pliers, but no specifications for insulating or antistatic properties of handles. Plastic covers or plastic sleeves are only used for grip comfort. In the latest revision, the general requirements for protection against clamping and squeezing have been refined in particular. The International Standard ISO 5743:2021 was prepared by the Technical Committee ISO/TC 29/SC 10, "Assembly tools for screws and nuts, pliers and nippers" with the participation of German experts from the Standards Committee NA 121 "Tools and Clamping Devices" (FWS) of the Working Committee NA 121-05-11 AA "Pliers".



Planned document number

DIN ISO 5743

Project number


Responsible national committee

NA 121-05-11 AA - Pliers 

Responsible international committee

ISO/TC 29/SC 10 - Assembly tools for screws and nuts, pliers and nippers 

previous edition(s)

Pliers and nippers - General technical requirements (ISO 5743:2004)

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