粗车刀具按其进给方向可以是右手型的或是左手型的。

Rough turning tools can be right-hand or left-hand types, depending upon the direction of feed.

youdao

车削刀具可以是精车刀具 或粗车刀具。粗车刀具刀尖半径较小，用 于深切削。

Turning tools. Turning tools can be either finishing or rough turning tools. Rough turning tools have small nose radii and are employed when deep cuts are made.

youdao