A definition and a discussion of each of these angles are the side cutting-edge angle(SCEA), the end cutting-edge angle(ecea), side relief and end relief angles, back and side rake angles.

• 定义和关于这些角度中的每一的讨论个是旁边最尖端的角度，结尾最尖端的角度，旁边安心和结尾后角、后面和边前角。