To magnetise a screwdriver, simply run it across one face of a magnet (either north or south face). The exposure to the single magnetic pole causes the driver to become magnetised.
To demagnetise it just run it along the edge of the magnet so that it passes through both the north and south fields simultaneously.

16 thoughts on “How to magnetise and demagnetise a screwdriver.”
  1. Avataaar/Circle Created with python_avatars VideoTape says:

    Too bad I lost my magnet. Hopefully it's in the shed somewhere.

  2. Avataaar/Circle Created with python_avatars david cohen says:

    Thank you!!!

  3. Avataaar/Circle Created with python_avatars bluracer 76 says:

    This is NOT working for me, I'm using two N 52s.

  4. Avataaar/Circle Created with python_avatars Kevin Schlecht says:

    thanks

  5. Avataaar/Circle Created with python_avatars Maths Magician says:

    can you de-magnetize a natural magnet in a similar way?

  6. Avataaar/Circle Created with python_avatars Jimjolnir says:

    Satisfying.

  7. Avataaar/Circle Created with python_avatars hjander 09 says:

    Love it, best simple video yet!

  8. Avataaar/Circle Created with python_avatars Steve Parkinson says:

    Brilliant, Thank you ๐Ÿ™‚

  9. Avataaar/Circle Created with python_avatars Vert Anatomy Lab says:

    Thank you! My pliers were driving me mad, now I can demagnetize them

  10. Avataaar/Circle Created with python_avatars Mar Adrian Belen says:

    I discovered this when i was a kid. I thought iwas a magic lol

  11. Avataaar/Circle Created with python_avatars Michel says:

    amazing trick

  12. Avataaar/Circle Created with python_avatars Yvonne Butterworth says:

    Thank you

  13. Avataaar/Circle Created with python_avatars Libena Starikova says:

    Really a good tip. I accidentally magnetized a metal file and the Wiha 40010 demagnetizer didn't work. This tip also did not work until I drew the entire length of the file across the tips of my fingers which kept the file about 1/8 inch from touching and also drew it in one direction about 5 times.

  14. Avataaar/Circle Created with python_avatars Molapo Tsasanyane says:

    Great! Thanks!

  15. Avataaar/Circle Created with python_avatars Norman Rennie says:

    Thank you so much…the time and money I've wasted on commercial de-mags…

  16. Avataaar/Circle Created with python_avatars avada says:

    Bah. The demagnetization doesn't work, no mater how many times I swipe along the edge.
    Update:
    A neodymium magnet seems to be too strong, can't swipe fast enough… ๐Ÿ™‚ Though even with a weak magnet I have trouble demagnetizing. It sometimes works when I swipe like crazy. This method is very unreliable. Requires many tries.

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