Assembly tools for screws and nuts -- Machine-operated screwdriver bits -- Part 3: Screwdriver bits for hexagon socket screws
This standard has been revised by ISO 2351-3:2014
ISO 2351-3 prescribes the technical specifications for machine-operated screwdriver bits for hexagon socket 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 2936.
It gives also recommended combinations between tips and bits.