Trimming tool for thin-wall workpiece

The utility model discloses an edge cutting tool for a thin-wall workpiece. The edge cutting tool comprises an upper top plate, a lower bottom plate, a positioning element and an edge cutting part, the trimming part comprises a stand column, an upper tool bit and a lower tool bit. The upper ends and the lower ends of the stand columns are fixedly connected with upper top plates and upper tool bits; the lower tool bit is fixed on the lower bottom plate, the positioning element is fixed on the lower tool bit, the upper tool bit corresponds to the lower tool bit in vertical position, the outer diameter of the lower tool bit is equal to the inner diameter of the upper tool bit, the outer diameter of the positioning element is slightly smaller than the inner diameter of the upper tool bit, andthe upper plane of the positioning element is slightly higher than the upper plane of the lower tool bit. By using the novel edge cutting tool, the flash at the bottom of the thin-wall workpiece can be quickly cut off, the cu