Correct option is B
A relieving attachment is a special lathe machine attachment used to provide relief to multipoint cutting tools, such as hobs, gear cutters, and reamers. It is designed to create back-off clearance on the cutting edges of these tools to prevent rubbing and excessive wear during machining operations.
· It is mounted on the lathe carriage and connected to the tool post.
· The attachment synchronizes the tool movement with the spindle rotation, ensuring that the relief is generated accurately.
· It provides a reciprocating motion to the tool, producing a relieved profile on the cutting edges of the tool.
