This standard BS 1660-11:1991 Machine tapers is classified in these ICS categories:
25.060.20 Dividing and tool-workpiece holding devices
This Part of BS 1660 specifies gauges for the manufacture and verification of the accuracy of self-holding and self-release tapers given in other Parts of BS 1660.
Details of gauges suitable for the manufacture and verification of the accuracy of self-holding and self-release tapers given in other parts of this standard.