To answer this question, we need to understand what mandrels are and their purpose.
A mandrel is a cylindrical object typically used to support or hold a workpiece during a machining or manufacturing process. Mandrels are commonly used in various industries, such as metalworking and woodworking.
Option A) Cutting tools - This option is incorrect because mandrels are not used to hold cutting tools. Cutting tools are usually held in tool holders or tool chucks.
Option B) Hollow workpieces - This option is correct. Mandrels are commonly used to hold hollow workpieces during machining or manufacturing processes. The mandrel provides support and stability to the hollow workpiece, allowing for accurate machining operations.
Option C) Faceplate - This option is incorrect. A faceplate is a different tool used for holding flat or irregularly shaped workpieces, typically in woodworking or lathe operations.
Option D) Drill bits - This option is incorrect. Drill bits are typically held in drill chucks or collets, not mandrels.
The correct answer is B) hollow workpieces. This option is correct because mandrels are commonly used to hold hollow workpieces during machining or manufacturing processes.