This standard BS ISO 1641-2:2011 End mills and slot drills is classified in these ICS categories:
25.100.20 Milling tools
This part of ISO 1641 specifies the general dimensions and designation of the following milling cutters with Morse taper and having a tapped hole:
end mills, flat-ended or ball-nosed — standard series and long series;
slot drills — short series and standard series.
Morse taper shanks are in accordance with ISO 296 and ISO 5413.
It is not applicable to the end mills and slot drills with cylindrical shank, which are dealt with in ISO 1641-1; it is not applicable to those with 7/24 taper shank, which are dealt with in ISO 1641-3.
This part of ISO 1641 is not applicable to solid hardmetal end mills and slot drills.