Answer is:
Clearance angle
Explanation:
Clearance angle is provided to avoid rubbing of the body of the tool with the work-piece
Answer is:
Threading chaser
Explanation:
Threading chaser is used only for finishing and maintaining correct form of thread.
Answer is:
Turning ductile materials and to break the chips
Answer is:
Boring tool
Explanation:
A tool, which is used to enlarge a previously drilled hole is known as Boring tool.