Clamp type group edge drilling bit

The utility model relates to a clamp type group edge drilling bit, which is composed of a drill bit and a drill rod, the drill bit can be changed after using up, and the utility model fundamentally solve the problem of high grinding difficulty of group drills. Under the condition of oversize drill thrust, connection of the drill bit and the drill rod can be strengthened via a welding method. Owing to being shaped by a mould, the utility model has high precision, a cutting edge and a chip dividing groove are most used for traditional group drills, the utility model is provided with a center drill and a cooling device, so the efficiency is obviously higher than the traditional group drills and is improved by more than two times than a common drill bit. The utility model can replace a common drill bit and a traditional group drill and can effectively make use of machine tools and increase production efficiency, and the utility model can replace a hydraulic pressure deep hole drilling machine with a common lathe, and the processing rate of the utility model is higher than the hydraulic pressure deep hole drilling machine.