● Super Finish Circuit ：
Use high frequency technologies on surface finish, a roughness less than Ra 0.2 micrometer can be obtained by 1 cut and 4 skims.

5' cut 4' cut 3' cut 2' cut 1' cut 0.14µm 0.25µm 0.49µm 0.83µm 2.56µm Material Steel SKD-11 with hardness Thickness 50mm (V380/500)

Steel SKD-11, thickness 30mm