用锉刀从工件表面锉掉多余的金属，使工件达到图纸上所需要的尺寸、形状和表面粗糙度，这种操作叫做锉削。锉削可以加工平面、曲面、内外圆弧面及其他复杂表面，也可用于成型样板、模具、型腔以及部件、机器装配时的工件修整等。
它有一个安全边缘，是最为理想的锉削工具。
Files have one safe edge, and are therefore ideal for filing close to shoulder.
倾斜、剥离、分级、 锉削、清理和挖掘等动作。
Includes instruction in digging. ditching. sloping. stripping. grading. and backfiling. clearing and excavating.
切削性操作 有錾削、锯削、锉削、攻螺纹、套螺纹。
Chisel cutting operation of cut, cut cut, cut file, attack thread, the thread sets.
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