A rotary cutting tool (1) and a rotary cutting operation assembly, wherein the cutting tool (1) is inside an outer cutter (3) provided with a sampling groove (5) at a front end and inside the outer cutter (3). A rotary cutting tool and a rotary cutting operation assembly comprising at least a sleeved inner cutter (4). The cutting tool (1) has a driven member for rotation (6) slidably engaged with the inner cutter (4) in the circumferential transmission axis direction, and a translational member fitted to the inner cutter (4) by a lead screw structure. And a driven member (7). The handle (2) includes a handle body and a drive component mounted on the handle body, the drive component being a rotating active member (8) used to rotate the driven member (6) for rotation. And a translational active member (9) used to drive the translational driven member (7). The rotational driven member (6) rotationally drives the inner cutter (4) and forms a rotational speed differential with the translational driven member (7), and the rotational speed differential is the inner cutter (4). Is moved in the axial direction, whereby sampling of the sampling groove (5) is carried out. This rotary cutting tool (1) is structurally simple and easy to assemble, easy to operate, has high sampling efficiency, ensure to operate as you want, ensure rotary and translational movement. Also ensure that interference does not easily occur between and. The operation of the operating parts is smooth and stable, and the rotary cutting operation is extremely efficient, ensuring safe operation. [Selection diagram] Figure 1回転式切断工具（１）及び回転式切断操作組立体であって、切断工具（１）が、前端に試料採取溝（５）の設けられる外側カッタ（３）と、外側カッタ（３）内部でスリーブ付きにされた内側カッタ（４）とを少なくとも含む、回転式切断工具及び回転式切断操作組立体。切断工具（１）は、周方向伝達軸方向において内側カッタ（４）と摺動可能に係合する回転用被駆動部材（６）と、親ねじ構造によって内側カッタ（４）に嵌合する並進式被駆動部材（７）とをも含む。把手（２）が、把手本体と、把手本体上に装着されるドライブ部品とを含み、ドライブ部品は、回転用被駆動部材（６）を回転させるのに使用される回転用能動部材（８）と、並進式被駆動部材（７）を駆動するのに使用される並進式能動部材（９）とを含む。回転用被駆動部材（６）は、内側カッタ（４）を回転駆動するとともに、並進式被駆動部材（７）との回転速度差動を形成し、回転速度差
