Milling cutter with unequal division and unequal helical angles

The utility model provides a milling cutter with unequal division and unequal helical angles, which comprises a milling cutter main body, one side of the milling cutter main body is fixedly connected with a cutter head, the cutter head is provided with a first helical angle and a second helical angle, and a limit ring is inserted outside the milling cutter main body in a penetrating manner. The limiting block slides along the guide strip, and the limiting block can be used for guiding the movement of the guide strip until the inserting rod is inserted into the positioning hole and the position of the limiting block is limited, so that the distance between the limiting sleeve and the cutter head is changed, the overall length of the milling cutter is adjusted, and the applicability of the milling cutter during installation is improved; the side edge on the tool bit is used for unequally dividing the tool bit, the first spiral angle and the second spiral angle are different, the unequal spiral angle function of