40010 magnetize or demagnetize steel screwdriver blades, tweezers and similar tools. Box high quality plastic, shock resistant, green and cadmium free. Magnetize screw drivers, tweezers, tool bits and other steel objects as needed. When your work is finished, use the de to remove the magnetic field. Also useful for demagnetizing tools before use on magnetically sensitive surfaces; i.e. for electronic work.
From the Manufacturer
40010 magnetize or demagnetize steel screwdriver blades, tweezers and similar tools. Box high quality plastic, shock resistant, green and cadmium free.
Customer reviews(572)Write Review
I'm so glad I did! This is a very, very cool device. It's utterly amazing how quickly the bits can be magnetized and demagnetized. Even a very quick, single pass can adequately magnetize the tip of a screwdriver. Similarly, if the screwdriver didn't spend a long amount of time in the magnetizing slot, a very quick pass will similarly demagnitize it. After researching a bit, I learned what the steps in the demagnetize slot are for. When a device is more strongly magnetized, you are supposed to start your tool on the highest step, then slowly work your way down to the bottom (I find slowly rotating it during this is also helpful). It seems to do a great job demagnetize things that were magnetized with this device. However, I do suspect that some tools that came magnetized from the factory will require a stronger electrical degaussing coil (you can buy or even make one pretty easily, if you have this need.)
As for fit and finish, this device is very high quality, as one would expect from Wiha, yet is priced surprisingly affordably.
As far as its ability to securly affix itself to metal surfaces: Some people have said the magnets are strong enough to hold the device firmly to metal surfaces, while others that say they are not not. I must report that the one I received is in the "not" camp. It was unable to hold itself securely when I tried it on a toolbox and on the refrigerator; it just slid right down. Not really a huge deal to me, but it is worth noting.
As far as the demagnetizer, well I suspect many people are trying to use it to demagnetize all their tools, including ones with good, permanent ferromagnetic properties. In that case, you won't do much with this thing - it is not meant to disrupt or 'compete' with a permanant magnet.
The demagnetization is harder than the magnetization by design; it is usualy harder to remove a magnetic field especially if you do it right after inducing one with a device this small. However, it does the trick if the tool was completely "non-magnetic" before magnetizing. But for $7, who can complain? This is a really good device to have and it works better on small tools. It does the trick well especially on ESD-safe tools (smaller ones) that are purposely designed to be as non-magnetic as possible with the materials (and without external forces like this magnetizer!) -- and for ESD-safe devices I have had consistent success magnetizing and demagnetizing as needed.