ISO 1080:1975 Preview
Machine tools -- Morse taper shanks -- Cotter slots with taper keys
This standard was last reviewed and confirmed* in 2016.
*Therefore this version remains current
Specifies a dimensioning system, with numerical values of the dimensions in millimetres and inches, for cotter slots with 5 % taper keys for Morse tapers, outside and inside, and for reduction sleeves, intended for fixing tools on machine tools.