A milling machine is a machine tool that uses a rotating cutting tool to remove material from a workpiece. The cutting tool can be programmed to move in a variety of different directions and depths to create a wide range of features on the workpiece. Milling machines are typically used to create parts with complex geometries, such as those found in the aerospace, automotive, and construction industries. They can also be used to create precision parts for the electronics and medical industries.

There are several types of milling machines, each of which are suited for specific types of work. For example, there are vertical milling machines, which have a vertically oriented cutting tool, and horizontal milling machines, which have a horizontally oriented cutting tool. There are also bed-type milling machines, which have a fixed worktable, and knee-type milling machines, which have a vertically adjustable worktable. Some milling machines also have a rotary table that can be used to create angled cuts or multi-axis machining.

Milling machines are used to make many different types of parts, including gears, screws, threads, and other complex shapes. They can also be used to create patterns and designs on the surface of a workpiece. With the right tools, milling machines can perform a wide range of operations, including drilling, boring, and tapping. The complexity of the machine and the precision of the finished parts can vary greatly depending on the machine and the application.