Chamfering tool

The utility model relates to the technical field of cutter equipment, and discloses a chamfering cutter. The chamfering tool comprises a tool bar, a chamfering blade and a pushing assembly, and the pushing assembly comprises a flexible pushing rod and a pushing and pressing rod piece which are connected. An open groove is formed in one end of the cutter bar in the axis direction of the cutter bar,and the chamfering blade is arranged in the open groove and rotationally connected with the cutter bar. The flexible push rod penetrates through the cutter bar in the axis direction, and the free endof the flexible push rod extends into the open groove. When the cutter bar is inserted into the inner hole of the bushing or pulled out of the inner hole of the bushing; a user pushes the push rod piece to extrude the flexible push rod and the chamfering blade to push the chamfering blade to rotate, so that the chamfering blade does not extend out of the peripheral side of the cutter bar, then itis ensured that the chamfe