Question

2 : What is the name of the process of finishing
the drilled hole? | ड्रिल किए गए छेद को फिनिश करने​

Answer 1

Answer:

Drilling is a cutting process that uses a drill bit to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute.