General Studies · Machining Operations
What is the primary purpose of a countersinking operation?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To smooth the inner cylindrical walls of a bore without altering its shape
- 2To increase the total linear depth of a drilled hole
- 3To reduce the overall internal diameter of an existing hole
- 4To create a conical recess at the entrance of a drilled hole✓
Correct answer
To create a conical recess at the entrance of a drilled hole
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