ISO 1641-3:2003

ISO 1641-3:2002 specifies the general dimensions of the following milling cutters with 7/24 taper shanks:
end mills, flat-ended or ball-nosed -- standard series and long series (manual changers); slot drills -- short series and standard series (manual changers); end mills, flat-ended -- standard series and long series (automatic changers).
Characteristics of 7/24 taper are in accordance with ISO 297 for manual changers and ISO 7388-1 for automatic changers.