General Studies · Machining Operations
If an excessive feed rate sets up an abnormal end thrust during drilling, what will be its effect on the drill bit?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Increase in overall drill bit life
- 2Failure of the structural helix only
- 3No effect on the chisel point
- 4Rapid breakdown of the chisel point and cutting lips✓
Correct answer
Rapid breakdown of the chisel point and cutting lips
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