Impact-extruding tool for machining chain plate hole

The invention discloses an impact-extruding tool for machining a chain plate hole. The impact-extruding tool comprises an impact-extruding handle and an impact-extruding head, wherein the impact-extruding head and the impact-extruding handle are integrated into a whole; the end part of the impact-extruding head is designed as an impacting part; a position close to the impacting part is designed as an extruding part which is a little larger than the impacting part in diameter. The impact-extruding tool for machining the chain plate hole simplifies the machining process and reduces work procedures; an impacting head and an impact-cutting tool are integrally designed ingeniously, so abrasion of the impact-cutting tool can be reduced; the surfaces of the impacting part and the extruding part are provided with coatings; by lubrication of pressure-resisting oil, the service life is quite long; the impact-extruding tool is replaced after machining 20000 chain plate holes; at the aspects of technological procedures and replacement of the tool, the time is saved, the production is improved, the cost is lowered, and the economic benefits are obviously increased.