Correct option is B
Drilling is the process of
making a hole in a metal piece using a
drill bit and a
drilling machine. It is one of the most common machining operations in metalworking.
Key Features of Drilling:
·
Uses a Rotating Drill Bit:
· A
cylindrical cutting tool (drill bit) rotates to remove material and create a hole.
·
Produces a Circular Hole:
· The hole can be further processed by
reaming, tapping, or boring for precision.
