The invention belongs to the technical field of drill structures and discloses a drill comprising a main body and a drill tip arranged at one end of the main body; the front end surface of the drill tip is backwards provided with a grinding primary groove, a first grinding secondary groove, and a second grinding secondary groove ; and the grinding primary groove, the first grinding secondary groove, and the second grinding secondary groove communicate with each other and come together at a meeting-point, and at least one of the grinding primary groove, the first grinding secondary groove, andthe second grinding secondary groove extends from the meeting-point to the direction of the root portion of the main body. The drill can not only improve the cutting sharpness and solve the quality problem of the hole wall, but also can enhance the rigidity and strength of the overall drill and ensure the precision of a hole position.