Milling cutters have teeth that remove material from a piece of stock to create parts with complex features and shapes. They are used on CNC or manual milling machines. Chamfer milling cutters can debur parts and mill internal and external chamfers on parts. Dovetail milling cutters create dovetail slots, or tapered grooves, in a workpiece. Keyseat milling cutters create grooves in shafts for mating keyed parts to the shaft.