Non-integrally-formed T-shaped milling cutter

The utility model relates to the technical field of cutting tools, and discloses a non-integrally-formed T-shaped milling cutter which comprises a cutter handle, a connecting part and a cutter head, the connecting part is fixedly installed on the bottom end face of the cutter handle, an alignment groove is formed in the bottom end of the connecting part, the cutter head is movably connected to the bottom end face of the connecting part, and an installation groove is formed in the top end face of the cutter head. An alignment block is fixedly mounted in the mounting groove, a replacement groove is formed in the bottom end face of the tool bit, and a replacement button is movably mounted in the replacement groove. According to the utility model, the replacement button is pressed to drive the limiting block to be separated from the limiting groove, at the moment, the damaged tool bit can be completely separated and the intact tool bit can be taken out, the replacement button is pressed to enable the limiting blo