Boring bars are cylindrical bars used for internal machining, typically to produce precise holes. Boring bars are also used for internal turning. Boring bars are available in steel, solid carbide, and carbide-reinforced steel.
Boring tools consist of a round shaft with one insert pocket designed to reach into a part hole or cavity to remove internal stock. Boring tools enlarge a hole made by a previous process.
Boring bars have the following advantages for hole making:
