Description::the appearance of this type of tool improved the technology of waste-discharging a lot for die-cutting products. due to the synchronous processing of die-cutting and waste-discharging, it avoids the waste happened in the processing to damage the knife edge or still remains in the printing materials to affect the quality of products. it can be used conveniently with no requirement of air-supply, no noise and can protect the tool well as the same time. this kind of tool is the best choice for the production with small hole, small gap and difficult waste-discharging, the minimum waste-discharge hole can be reached 0.6mm.