DIFF Subgroup
B23B 27/1685 Full Title
Tools for turning or boring machines (for drilling machines B23B51/00); Tools of a similar kind in general; Accessories therefor > Cutting tools of which the bits or tips are of special material > with exchangeable cutting bits , e.g. able to be clamped
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.