The present invention belongs to the technical field of drill tools in machining, and is used for high-quality drilling of a composite material and its laminated structure, and includes a main cutting edge area A, a secondary cutting edge area B, and a shank area C. Regarding the vertical blade double-step micro tooth cutting tool consisting of three parts, the secondary cutting edge area B includes a step vertical blade area D and a micro tooth cutting area E. The vertical blade double-step micro-tooth cutting tool used for high-quality punching of the composite material and the laminated structure thereof according to the present invention has a step structure, in which the micro-tooth structure is distributed in the first step, and re-cutting at the inlet is performed. It has a reverse shearing function opposite to the main cutting motion direction at the function and outlet, and can effectively prevent damage such as delamination at the inlet and outlet of the composite material and burr. The vertical blade structure is distributed in the 2nd step, and the 2nd step angle is a negative value, so that cutting of chips and breaking of chips can be realized, and scratches to the upper composite material and the metal hole wall are achieved. Reduced and removed the metal outlet burr and composite material outlet burr from the root, and improved the quality of metal and composite material outlet.
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