Novel diamond drill

The utility model relates to a novel diamond drill and effectively solves the problems of the conventional diamond drill in working, such as large resistance, friction force and difficulty in heat emission which are caused by large contact area of the inner side thereof, and difficulties in removing chips and taking out a drill core.The technical scheme for solving the problems includes that the novel diamond drill comprises a hollow cylindrical steel base, a plurality of diamond tool bits are welded onto the upper face of the steel base and uniformly distributed at intervals, the external end surfaces of the diamond tool bits extend out of the external end surface, the internal end surfaces of the diamond tool bits extend out of the internal end surface, width of the front end surfaces of the diamond tool bits is larger than that of the rear end surfaces of the diamond tool bits, the front end surfaces are connected with the rear end surfaces through arc-shaped rails, and a plurality of interacted slope slots are respectively formed in two sides of the diamond tool bits. The novel diamond drill is skillful in structure, low in investment cost, small in the resistance and the friction force, easy to discharge the chips and water to accelerate cooling speed, and easy to take out the drill core to improve working efficiency and reduce working time.