Special cutter for vertical lathe

The utility model discloses a special cutter for a vertical lathe. The special cutter for the vertical lathe comprises a tool bit (1) and a tool shank (2). The special cutter is characterized in that the tool bit (1) is arranged on the L-shaped tool shank (2); the tool bit (1) is arranged at the top part of an L-shaped vertical section of the tool shank (2); a mounting groove (3) is arranged inside an L-shaped horizontal section of the tool shank (2), and the tool shank (2) is connected with the lathe through the mounting groove (3). By arranging the L-shaped tool shank on the tool bit, the tool bit is arranged at the top part of the L-shaped vertical section of the tool shank, and then connected with the lathe through the mounting groove arranged in the horizontal section of the tool shank. Meanwhile, the length of the vertical section of the tool shank can be prepared according to the actual requirement, and the special cutter has the characteristics of simple structure and wide processing range, and is sui