General
hot wrench
What does hot wrench mean?
The technique — and by extension the torch itself — of heating a rusted or seized fastener red-hot so the metal expands, breaks the corrosion bond, and finally lets you back it out. Not the same as cutting it off; the goal is to save the threads. Every mechanic and millwright has a hot wrench story.
"Give that nut a couple seconds with the hot wrench and it'll spin right off."
Frequently asked questions
What does "hot wrench" mean?
It refers to heating a seized bolt with a torch so it expands and will finally turn.
How do you use "hot wrench" in a sentence?
"That nut's rusted solid — time for the hot wrench."
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