A rotary cutting tool (1) and a rotary cutting operation assembly, comprising: an outer blade (3) having a sampling groove (5) at least at its front end； And an inner blade (3) tubularly coupled within the outer blade (3)； The cutting tool 1 is also provided with a rotary driven member 6 which is in rolling contact with the inner blade 4 in a circumferential direction and is slidably engaged in the axial direction, And a translating driven member (7) to be fitted； The handle 2 includes a handle body and a drive component mounted on the handle body, the drive component including a rotary actuating member 8 configured to drive rotation of the rotary driven member 6, And a translationally-acting member (9) The rotational driven member 6 drives the rotation of the inner blade 4 to form a rotational speed difference with respect to the translating driven member 7 and the inner blade 4 has a rotational speed difference that the inner blade 4 rotates in the axial direction Characterized in that it is driven so as to perform sampling of the sampling groove (5) by moving； The present rotary cutting tool 1 is structurally simple, easy to assemble, easy to operate, high in sampling efficiency, ensuring successful operation and ensuring that interference does not easily occur between rotational and translational motions； The operation of the operating parts is smooth and stable, and the rotary cutting operation is very efficient and safe operation is ensured.회전 절삭 공구(1) 및 회전 절삭 작동 조립체에 있어서, 적어도 그 전단에 샘플링 홈(5)이 구비된 외측날(3)； 및 외측날(3)의 내에 관형결합되는 내측날(3)을 포함하고； 절삭 공구(1)는 또한, 내측날(4)과 원주방향으로 전동 가능하게 결합되고, 축방향으로는 슬라이딩 가능하게 결합되는 회전 피동 부재(6)와 스크류 구조 수단에 의해 내측날(4)에 끼워지는 병진 피동 부재(7)를 포함하며； 핸들(2)은 핸들 본체와 핸들 본체에 장착된 구동 부품을 포함하고, 상기 구동 부품은 회전 피동 부재(6)의 회전을 구동하도록 구성된 회전 작동 부재(8) 및 병진 피동 부재(7)를 구동하도록 구성된 병진 작동 부재(9)를 포함하며； 상기 회전 피동 부재(6)는 내측날(4)의 회전을 구동하여 병진 피동 부재(7)와의 회전 속도차를 형성하고, 내측날(4)은 회전 속도차는 내측날(4)이 축방향으로 이동함으로써, 샘플링 홈(5)의 샘플링을 수행하도록 구동하는 것을 특징으로 하고； 본 회전 절삭 공구(1)는 구조적으로 간단하고, 조립이 용이하며, 작
