General Studies · Machining and Machine Tools
Centre drilling is performed before a drilling operation to ________.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1locate the hole centre exactly at the centre punch mark✓
- 2carry out a pilot drilling operation
- 3identify the location of the hole
- 4drill a hole accurately at the centre in the face of the job
Correct answer
locate the hole centre exactly at the centre punch mark
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