回转刀具 meaning in English

rotating tool

Main models of novel design and virtual making of revolving cutter
回转刀具的新型设计与虚拟制造的主干模型
Rotating tools with parallel shanks - diameters of shanks and sizes of driving squares
直柄回转刀具.刀柄的直径和方形传动件的尺寸
The general model for virtual reality of revolve cutter with a constant lead and its application
等导程回转刀具虚拟实境的通用模型及其应用