A face mill is a type of cutting tool used in machining to create flat surfaces on a workpiece. It features multiple cutting edges, allowing it to remove material efficiently. Face mills are typically mounted on a milling machine and can be used with various materials, including metals and plastics. These tools come in different sizes and configurations, making them versatile for various applications. The cutting inserts on a face mill can be replaced when worn out, enhancing the tool's longevity and performance. Face mills are essential in industries like manufacturing and automotive, where precision and surface finish are crucial.