This International Standard specifies the dimensions for interchangeably between the cutter and the ar-bor or mandrel, i.e. the diameter of the bore and the arbor or mandrel and elements of the drive, whether by keying or tenon.
It applies to all types of milling cutters mounted on cutter arbors or mandrels.
Two groups of tables have been established, relating respectively to the key drive and the tenon drive.
Tables giving the conversion of the metric values into inches are given in annex A.
BS 122-6:1995 history
2016BS ISO 240:2016 Milling cutters. Interchangeability dimensions for cutter arbors or cutter mandrels
1995BS 122-6:1995 Milling cutters - Specification for dimensions for interchangeability of cutter arbors and cutter mandrels