This standard specifies the dimensions and tolerances of metric cones No. 4, 6, 80, 100, 120, 160, and 200 and Morse cones No. 0, 1, 2, 3, 4, 5, and 6. This standard applies to self-clamping cones for machine tools and tool holders.
GB/T 1443-1996 history
2016GB/T 1443-2016 Self-clamping cones for machine tools and tool holders
1996GB/T 1443-1996 Machine tools--Self-holding tapers for tool shanks