Rotary cutting tool and tool assembly

Disclosed are a rotary cutting tool and a tool assembly. The rotary cutting tool comprises a tool body having an axis of rotation (L) and a cylindrical shank 20, which comprises at least one locking groove 28 via which the cutting tool can be axially locked in a tool holder. The locking groove has an axial groove 34, which extends from an axial end 22 on the receiving side in axial direction A to an axial stop 38, and a circumferential groove 36, which is laterally adjacent to the axial groove and extends away from the axial stop and the axial groove in circumferential direction U toward a rotation stop 40. The circumferential groove comprises a first end face 48 and a second end face 50 opposite to said first end face, both of which extend in a plane that is perpendicular to the axis of rotation. The tool assembly has such a rotary cutting tool and a tool holder having a cylindrical tool receptacle for the cutting tool. 本发明公开了旋转切割工具和工具组件。旋转切割工具包括具有旋转轴线(L)和圆柱形柄部(20)的工具主体(15)，圆柱形柄部包括至少一个锁定凹槽(28)，切割工具能经由所述至少一个锁