Milling is a metal cutting process used primarily for the generation of cylindrical surfaces.

• A. True
• B. False
• C. Always
• D. Never

Answer: (B)

Milling is a versatile metal cutting process that uses a rotating cutter to remove material from a workpiece to create a wide range of shapes. It’s typically used to make flat surfaces, slots, pockets, and complex profiles, not primarily to generate cylindrical surfaces. True cylindrical surfaces—where the surface is a right circular cylinder—are most efficiently and accurately produced by turning (lathe operations) because the workpiece rotates and the cutting tool follows the axis to create a consistent diameter. Milling can produce cylindrical forms in some setups, but it’s not the standard or primary method for this feature. Hence, the statement is false.