A damaged threaded hole in an aluminum block should be repaired by using a bottoming tap of the correct size.

Name: A damaged threaded hole in an aluminum block should be repaired by using a bottoming tap of the correct size.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

A damaged threaded hole is typically repaired by using a helicoil insert or similar thread repair kit, not just by re-tapping it with a bottoming tap, as this would not add material or strength back to the threads.

A Damaged Threaded Hole in an Aluminum Block Should Be