*It is very suitable for cutting on narrow and deep rib by long neck end mill. *D<2.5, the Helix Angle is 30°;D≥2.5, the Helix Angle is 45°。
*It is very suitable for cutting on narrow and deep rib by long neck end mill. *D<2.5, the Helix Angle is 30°;D≥2.5, the Helix Angle is 45°。