Tooth cutting knife

The invention discloses a tooth cutting knife. The tooth cutting cutter comprises a cutter holder, a plurality of cutter boxes and a plurality of cutter teeth. The tool apron is provided with a cylindrical body and a plurality of mounting grooves formed in the cylindrical body. The multiple installation grooves are distributed in the edge of the end face of the cylindrical body at intervals. And the plurality of cutter boxes are correspondingly arranged in the plurality of mounting grooves respectively. And the plurality of cutter teeth are correspondingly connected to the plurality of cutter boxes respectively. Compared with a slotting cutter in the prior art, only the mounting groove needs to be directly machined in the cylindrical body, the cutter teeth are mounted in the mounting groove, then only the machining precision of the cutter teeth needs to be guaranteed, the manufacturing process of the slotting cutter is simplified, and the manufacturing cost is reduced. 本申请公开了一种剐齿刀。剐齿刀包括刀座、多个刀盒以及多个刀齿。刀座具有柱形主体和