A detachable medical cutting tool includes a shank portion, a cutting edge portion, a rotation prevention portion and a coherence keeping portion. The shank portion includes a connection portion. The cutting edge portion includes a combination portion to be combined removably with the connection portion of the shank portion. The rotation prevention portion is interposed between the connection portion of the shank portion and the combination portion of the cutting edge portion. The rotation prevention portion prevents from a rotation in a rotation direction. The coherence keeping portion keeps coherence when the connection portion of the shank portion and the combination portion of the cutting edge portion are combined with each other. The shank portion includes stainless steel. The cutting edge portion includes zirconia. The detachable medical cutting tool is configured to be combined with a high speed rotation apparatus to perform a perforation drilling at a bone tissue of a human body.
