Let's say you stored your tools on a magnetic organizer in your toolbox, such as the one pictured.

Now you go and use a socket or wrench that is slightly magnetized. Have you done wrong?

enter image description here

  • $\begingroup$ mmm...free snack! $\endgroup$ Aug 30, 2017 at 7:38
  • 1
    $\begingroup$ ... what are you even using these tools for? $\endgroup$
    – Nij
    Aug 30, 2017 at 8:00
  • $\begingroup$ Just dont bring strong magnets on board during the test flight and wonder why you're flying in circles! $\endgroup$
    – Jamiec
    Aug 30, 2017 at 12:31

1 Answer 1


The answer: In most cases, no. There are a few exceptions.

The most common exception is when adjusting any sort of magnetic compass system. Flux valves, whiskey compasses, etc... are usually supposed to be adjusted with tools made of brass.

Even then, your typical A&P will adjust the whiskey compass, for example, wait for the thing to stop spinning like crazy, and then make a slight adjustment back the other way. He'll repeat that process until he gets it right. I'm not saying it's right, but it's what most of them do.

The only other scenario I can think of would be bringing those tools too close to a CRT-based display system. Magnetized tools can make the display go a little wacky.

There may be others, but that's all I can think of off the top of my head.

  • 1
    $\begingroup$ I brass screwdriver is only $10. If your A&P is using a non-brass one, you need to get a new A&P. $\endgroup$
    – JScarry
    Aug 30, 2017 at 14:49

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