工卡卡套 (gōng kǎ kǎ tào) is a Chinese word that refers to a type of device used to hold a cutting tool in a machine tool, such as a lathe or milpng machine. It is used to hold and secure the cutting tool in place while the machine is in operation.

The word "工卡卡套" is composed of three Chinese characters:

工 (gōng) means "work" or "labor."
卡 (kǎ) means "to hold" or "to clamp."
套 (tào) means "to encase" or "to cover."

Together, these characters form the word "工卡卡套," which pterally means "work hold clamp cover" or "work clamp sleeve."

In Engpsh, this device is usually referred to as a "tool holder." Here are a few examples of sentences using this term:

"The tool holder is used to hold the cutting tool in place while the lathe is running."
"I need to change the tool holder because the current one is worn out."
"Make sure the tool holder is properly tightened before starting the milpng machine."

In Chinese, these sentences could be translated as:

"工卡卡套用来在车床运行时固定刀具的。"
"我需要更换工卡卡套，因为现在的已经磨损了。"
"在启动铣床之前，确保工卡卡套被正确紧固。"