前后刀面的交线，它担负主要的切削工作也叫主切削刃或主刀刃。
切削力 cutting lip n. 切削刃，刀刃，钻唇，钻刃 cutting operation n. 切削加工，切削操作，切削作业 cutting rate n.
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... tuːl bɔks] 工具箱 ... tool edge 切削刃；刀刃 ... tool kit 工具箱，放在一起的成套专用工具，以方便经常使用 ...
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主切削刃 active cutting edge ; primary cutting edge ; working cutting edge ; tool major cutting edge
钻头切削刃 drill edge
切削刃轮廓 cutting edge profile
切削刃轮廓〔外形 cutting edge profile
取心钻头切削刃 cutting head
切削刃到车刀轴距离 Boring Radius
副切削刃 tool minor cutting edge ; end cutting edge ; side cutting edge
切削刃总长 linear cutting edge
钻头切削刃折断 twist-off on the bottom ; off on the bottom
婴儿剪刀：曲线切削刃和容易扶手确保安全举行。
Baby Scissors: Curved cutting edges and the easy grip handle ensures a secure hold.
磨轮用非常大量的微型切削刃模仿铣刀进行切削。
The latter simulates a milling cutter with an extremely large number of miniature cutting edges.
在铣刀切削工件金属时，铣刀的每条切削刃都象一单独的单刃刀具一样作用。
Each of the cutting edges of a milling cutter ACTS as an individual single-point cutter when it engages with the workpiece metal.
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