End mills are also called cutters. They look similar to drills, but while drills are only used for making holes, end mills have blades on the bottom and sides, so they can process flat and side surfaces of workpieces. Since the tip of the end mill is receding and can be easily damaged, care must be taken to bring the end mill to the material as slowly as possible when starting to cut. End mills are especially used for precision processing of electrical, electronic, automotive parts, and molds.