What is the primary function of an end mill in CNC machining?

The primary function of an end mill in CNC machining is to shape the material during milling operations. End mills are designed with cutting edges on both the sides and the end, allowing them to perform various cutting, shaping, and contouring tasks. They are versatile tools used to produce complex geometries and features in a workpiece, such as slots, pockets, and intricate profiles.

End mills can move in multiple axes, which means they can cut along both horizontal and vertical planes, making them ideal for removing material from various angles. This capability expands the functional applications of CNC machining, where precise and detailed shapes are often required.

Although other tools might serve specific purposes (like drilling or cutting materials into lengths), end mills focus on milling operations that involve shaping and contouring the workpiece, making them a critical component in many CNC applications.