攻丝

gōng sī jī

攻丝机

tapping machine

yī cì zhuāng jiā kě yǐ wán chéng zuān kǒng xǐ xiāo gōng sī děng jiā gōng gōng xù

一次装夹可以完成钻孔，铣削，攻丝等加工工序。

Drilling, milling and tapping can be finished clamping one time.

gōng sī guò chéng

攻丝过程

the tapping process