Distinguished by their wide cutting diameter and multiple replaceable carbide or high-speed steel cutting inserts positioned on the face, they are designed to cut along the face of a workpiece, hence the name. The process with face mills is typically horizontal, skimming off layers from the surface to achieve a flat, fine finish. One of the standout features of face mills is their ability to offer a higher feed rate due to the multiple cutting edges engaged with the material. The choice of insert material and geometry is paramount in face milling operations. Depending on the workpiece’s material, certain inserts can maximize tool life, reduce chatter, and achieve that perfectly smooth finish so sought after in many industries.