Question

Identify the operation related to drilling which is illustrated in Figure below.

• A. Reaming
• B. Tapping
• C. Counter boring
• D. Center drilling

Hint:

Center drilling is crucial when starting holes, especially when accuracy in alignment is required for further machining operations.

Answer 1

The Correct Option is D

Center drilling is used to create a small, precise hole at the center of a workpiece, which serves as a guide for further drilling. This operation is typically used to create a starting point for drilling operations to ensure proper alignment.