General Studies · Machining Processes
Counter-boring is a machining operation primarily provided to ______.
- 1form rivet heads during assembly
- 2enlarge pre-drilled holes accurately along their entire length
- 3deburr the sharp ends of pre-drilled holes
- 4accommodate socket heads and cylindrical screw heads below the surface✓
Correct answer
accommodate socket heads and cylindrical screw heads below the surface
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