Which tool should not be used when trying to remove a fastener?

Name: Which tool should not be used when trying to remove a fastener?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

An open-end wrench should not be used when trying to remove a fastener as it can easily slip off and round the edges of the fastener, making it more difficult to remove. A box-end wrench or a socket provides a better grip on the fastener and reduces the chance of it slipping off. Using a penetrating oil can also help loosen the fastener and make it easier to remove.

Which Tool Should Not Be Used When Trying to Remove