NF ISO 2351-2

Assembly tools for screws and nuts - Machine-operated screwdrivers bits - Part 2 : screwdriver bits for cross-recessed head screws

ISO 2351-2 prescribes the technical specifications for machine-operated screwdriver bits for cross-recessed head screws. It applies to bits with male hexagon drive or with cylindrical flat end drive as defined in ISO 1173, and to tips for screwdrivers as defined in ISO 8764-1.

It also gives recommended combinations between tips and bits.

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