Some decomposition of the rolling wheel

Also named: the pattern knife, the hobbing knife.
Application: rolling patterns on metal products or other work surfaces.
Types: straight knurling wheel, right twill knurling wheel and six knurling knives.
The knurling wheel determines its size by modulus. According to the national standard, the common specifications are 0.3, 0.4, 0.5, 0.6, 0.8, 1, 1.2, 1.5, 1.6, 1.8, 2.