T type milling cutter

The utility model relates to a T-shaped cutter which comprises a cutter shank and a cutter bit. The T-shaped cutter is characterized in that the cutter bit has interlocking teeth and teeth on two sides, the degree Alpha of the teeth on two sides is 1-2 degrees, and the degree Beta of the interlocking teeth is 10-12 degrees. Because the cutter adopts interlocking teeth and teeth on two sides, the cutting is light and handy, the parts are under uniform stress, the vibration of a machine tool is obviously reduced, and the amount of fluctuation of the T-shaped groove in the horizontal direction can be controlled within 0.1mm. Therefore, the design requirement can be satisfied. By adopting the cutter for intermittent cut, the efficiency is high, the surface quality of the parts is good, and the wear of the cutter is small.