Final answer:
The two general types of milling cutters are face and end. Face milling cutters are used for flat surfaces perpendicular to the axis of rotation, and end milling cutters are used for detailed work on the edges or ends of a material.
Step-by-step explanation:
The two general types of milling cutters are face and end cutters. Face milling cutters are used for milling a flat surface that is perpendicular to the axis of rotation of the cutter, while end milling cutters are used for making a cut directly into the material to create a complex shape, often on the edge or end of a workpiece. Both face and end milling cutters come in various shapes and sizes to suit different types of milling operations.