The present invention relates to an implant surgery drill capable of preventing accidents in advance by actively reinforcing coupling force between a cutting part for cutting the alveolar bone and a connecting part for connecting the cutting part to a handpiece and, more specifically, comprises: a cutting part (10) having a plurality of cutting blades that comprise saw teeth and are aligned in a circular shape so as to perforate the alveolar bone； and a connecting part (20) interposed between the handpiece and the cutting part, wherein, specifically, the cutting part (10) comprises: the saw teeth (11) aligned in a circular shape at the upper end thereof； a cutting upper part (12) extending downward from the saw teeth； a cutting lower part (13) protruding downward from the cutting upper part with an expanded diameter； and a coupling hole (14) recessed from the bottom surface of the cutting lower part so as to induce insertion of the connecting part, the connecting part (20) comprises: a coupling protrusion (21) inserted and interposed in the coupling hole of the cutting part； a stepped part (22) protruding downward from the bottom of the coupling protrusion with an expanded diameter, and restricting the insertion length of the coupling hole； and an extended part (23) extendedly protruding from the bottom surface of the stepped part so as to be connected to the handpiece, and the coupling protrusion (21) further has threads on the outer periphery thereof, and the coupling hole (14) further has threaded grooves corresponding to the threads of the coupling protrusion, so that the coupling protrusion and the coupling hole are fastened to each other by a bolt fastening method.La présente invention concerne un foret pour chirurgie d'implant en mesure d'empêcher des accidents à l'avance par renforcement actif de la force d'accouplement entre une partie de coupe, destinée à couper l'os alvéolaire, et une partie de liaison, destinée à relier la partie de coupe à une pièce à m
