수리 사례

2026. 6. 30. 작업

증상

How should I remove this corroded nut without rounding it?

처리 내용

The tool Thanks to you all for your many good suggestions, but I thought I'd share how I actually got these nuts off today. First, more PB Blaster, and then while I was at the auto parts store getting parts for another project, I spotted these and decided to try them: On the package they say "Reusable" but on the store's web site they say "Disposable" so my hopes weren't really high. However, I used it and it did the trick. Essentially, it's a 6-point adapter that fits into a 12-point box-end wrench 2mm larger than the target size. So for my 13mm bolt, I used a 15mm wrench. It's sufficiently low profile that it was able to fit where more conventional extractors probably wouldn't. The result I tried the first one and was elated when it actually broke the nut free, so I tried it on the second one, where it promptly cracked into pieces. Still, it seemed to me to be worth the $10 that I paid for the set, so I went back to the store and bought another set. As you can see