Magnetize demagnetize tool

Running a neodymium or other rare-earth magnet in one direction along any metal tool that contains some iron will magnetize it to attract other iron-based items.

This trick is especially useful for hand tools like screwdrivers, which will not just lift the screw but hold it in place while you work. Wipe any dirt or debris from all metal parts of the screwdriver with a dry rag or cloth. If especially dirty, dampen the rag to thoroughly clean the tool, then allow the metal to dry before proceeding.

Hold the screwdriver in one hand and the magnet in the other. These things pictured below. I get how the magnetizer works: a permanent magnet magnetises the tool bit, but how is the magnetic fields arranged in the demagnetizer in order to demagnetize tools? To magnetize a tool typically made of steel you bring it orderly to the proximity of a strong magnet and then remove it. The magnetic field inside the tool increases, the tiny magnetic domains inside line up and when you remove the tool some of these tiny magnets remain in order.

You can try that with a screw driver and a magnet: pass the magnet pole only in one direction, i. If the material follows the arrows in the drawing below it ends up magnetized at the point Mrs. Forum Rules.

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