CNC Collets: Types and Maintenance Tips
If you work in the manufacturing or construction fields, the term “collets” is likely already familiar. Collets come in a variety of types and serve many different industrial applications. In this article, the focus will be on collets used in rotary tool holders, which are commonly applied in CNC machining (such as milling operations). Before diving into the details, it is important to first understand how collets function, the factors that affect their performance, proper maintenance practices to extend their lifespan, and the key signs that indicate when they should be replaced. What are Collets? Collets serve as the essential link between the cutting tool and the tool holder (also known as a collet chuck). Typically, collets are round, tapered, and slotted in design. Their purpose is to grip the shank of a cutting tool securely, distributing clamping force evenly around the central bore. To gain a clearer understanding, it is useful to first examine the basic structure o...
