Drill sleeves and fixed drill sleeves are mainly used to determine the axis position of fixed-size tools such as drills, reamers, and reamers. The structure and size of drill sleeves have been standardized. According to the characteristics of use, there are four types of drill sleeves: fixed drill sleeve, replaceable drill sleeve, quick-change drill sleeve and special drill sleeve. And the "interference fit" is used to insert the drill sleeve into the drill template.
The significance of the drill sleeve is that it can position and guide the tool for processing, thereby improving the accuracy of processing.
