Cutter for machining section threads

The utility model discloses a cutter for processing section threads in the technical field of numerical control blades, which comprises a blade main body, the blade main body is of an integrally formed structure, the end face of the blade main body is diamond-shaped, and a screw hole is formed in the center of the blade main body. The two acute angle ends of the blade body are each provided with a cutting edge strip, and the section of each cutting edge strip is in a regular triangle shape. A chip groove is formed beside the cutting edge belt, the section of the chip groove is triangular, the chip groove and the cutting edge belt are provided with a common plane, and the bottom surface of the chip groove is flush with the bottom surface of the cutting edge belt. The height of the cutting edge strip is 1.1 mm, and the top of the cutting edge strip is provided with an R0.2 chamfer. The included angle between the cutting edge strip and the lower end face of the blade body is 100 degrees. Section threads can be c