Your Tool Kit Needs a Magnetizer [Video]

If you’ve ever opened up an appliance, you’re probably familiar with the frustration of screws and small parts rolling away or falling inside an opened-up machine. And for working on cars, magnetic bits and wrenches can help you keep from dropping parts into your engine. If you’re thinking of tackling a repair project that has lots of small screws, a magnetizer might be for you.

How do magnetizers work?

A tool magnetizer uses a magnet with positive polarity to rearrange the electrons in the metal of a tool to align with the magnetic field of the tool magnetizer. This increases the strength of the magnetic field in the metal of the tool, thus “magnetizing” it. A demagnetizer uses a magnet with negative polarity to rearrange the electrons in the metal of a tool to align with the magnetic field of the demagnetizer. This decreases the strength of the magnetic field in the metal of …