What about this powerful magnet in the T-mag?

[peacefuljeffrey]

I keep thinking about how easily magnets mess things up these days -- computers, mostly, but also credit card mag strips. Gotta be really careful to keep your powerful magnets away from stuff that can suffer damage from them.

That brings me to the question, is the magnet in the T-mag likely to cause problems being in a pocket that can come near electronic devices, or wallets containing credit cards, etc.? Just how powerful is the magnet, and how far outside the knife does the potency of its field extend?

I have those tiny Geomag toy magnets, and I brought one near a computer monitor. Had to degauss the thing several times over an hour to get it back to normal! And I notice a flux in the screen (a CRT) when one tiny Geomag is still about three inches from the side of it!

-PJ

[Vincent]

I keep thinking about how easily magnets mess things up these days -- computers, mostly, but also credit card mag strips. Gotta be really careful to keep your powerful magnets away from stuff that can suffer damage from them.

That brings me to the question, is the magnet in the T-mag likely to cause problems being in a pocket that can come near electronic devices, or wallets containing credit cards, etc.? Just how powerful is the magnet, and how far outside the knife does the potency of its field extend?

I have those tiny Geomag toy magnets, and I brought one near a computer monitor. Had to degauss the thing several times over an hour to get it back to normal! And I notice a flux in the screen (a CRT) when one tiny Geomag is still about three inches from the side of it!

-PJ

All of My Spyderco's have com magnetized.

[Blackhair]

All of My Spyderco's have com magnetized.

Uhhh... What? If you mean that all your Spyderco's have steel that reacts to magnets, then, um, yeah... that would constitute a steel blade. That's what it does.
If you mean that you only have T-Mag Spyderco's, then that's... great; but still doesn't answer his question...

That magnet in the T-Mag is a neodymium "rare earth" magnet. This is the same kind as is used in Geomags, according to the Geomag website; although I would imagine that the magnet in the T-Mag is even more powerful. So, anything that your Geomag will mess up, the T-Mag will mess up, but probably to an even greater extent.

That only electronics that you can pretty much 100% safely put next to magnets is Flash Memory. So if you have a USB Thumb Drive, that would be safe to put in your pocket next to a magnet. But anything else, even something that's relatively safe next to magnets (like an iPod Nano), should be considered a no-no for magnet safety. Better safe than sorry.

Things you ned to especially watch out for are hard drives. So, if you have an iPod Video, for instance, KEEP THAT THING AWAY FROM MAGNETS!!!

Oh, I see you also asked how powerful the magnet is, and how far its field extends. Well, Neodymium magnets are around 35 times more powerful than a ceramic magnet of the same size, and the more powerful grades of Neodymium magnets can successfully hold up 1300 times their own weight!

However, their field only extends maybe an inch around them, and that would be dampened further by the knife handle. So, you'd probably be pretty hard pressed to accidentally wipe something out if you just walked past it. As long as you just kept things like electronics and credit cards in a different pocket from the T-Mag, you should be fine.

[Mr Blonde]

I've only played with the prototype, and that T-mag was really powerful. The closed knife picked up an SS ladybug 3 off the table like it was nothing. I asked about the dangers to other pocket-carried electronics and bank cards etc... The crew wasn't sure at the time. It's one of the reasons I'm not too enthusiastic about the Tmag. I've got this excellent Sony Ericsson M600 smartphone that I can't do without. I'd hate to see it messed up by the magnetic field of the Tmag.

Wouter

[Vincent]

Uhhh... What? If you mean that all your Spyderco's have steel that reacts to magnets, then, um, yeah... that would constitute a steel blade. That's what it does.
If you mean that you only have T-Mag Spyderco's, then that's... great; but still doesn't answer his question...

That magnet in the T-Mag is a neodymium "rare earth" magnet. This is the same kind as is used in Geomags, according to the Geomag website; although I would imagine that the magnet in the T-Mag is even more powerful. So, anything that your Geomag will mess up, the T-Mag will mess up, but probably to an even greater extent.

That only electronics that you can pretty much 100% safely put next to magnets is Flash Memory. So if you have a USB Thumb Drive, that would be safe to put in your pocket next to a magnet. But anything else, even something that's relatively safe next to magnets (like an iPod Nano), should be considered a no-no for magnet safety. Better safe than sorry.

Things you ned to especially watch out for are hard drives. So, if you have an iPod Video, for instance, KEEP THAT THING AWAY FROM MAGNETS!!!

Oh, I see you also asked how powerful the magnet is, and how far its field extends. Well, Neodymium magnets are around 35 times more powerful than a ceramic magnet of the same size, and the more powerful grades of Neodymium magnets can successfully hold up 1300 times their own weight!

However, their field only extends maybe an inch around them, and that would be dampened further by the knife handle. So, you'd probably be pretty hard pressed to accidentally wipe something out if you just walked past it. As long as you just kept things like electronics and credit cards in a different pocket from the T-Mag, you should be fine.

what are you talking about, He said he was worried about using the knife with sensitive parts. I said all my spyderco's are have come magnetized. If you know what the word magnetized means then you would understand what I am saying. I guess you don't, so I will tell you. Magnetized means that the object acts like a magnet, or it could be a magnet itself. A magnetized object would attract steel or iron.

No i don't own ant T-mag knives, I just found out what one was. My point is that My Spydercos are already magnetized, they came like that. so it did answer his question.

[buferoe]

Hi There,

All I can say is watch out with these magnets,my Son and I are using them in Slotcars.And they are less than one centimeter in diameter.
You can drive these slotcars upside down with quite some speed and they will stick into the slot.
I remember Eric telling us at the Amsterdam meet that the knive sticks easily to a Refrigerator door.
I think they will do some serious damage to you're credit cards when they are near them.


kind regards,

Werner

[jaislandboy]

I have a Tmag......I have no clue what strength the magnet is.....
but I have 1 inch disc magnets from Leevalley tools and these are Much stronger than the one in the Tmag.....
All questions u may have about magnets can be found here:

http://www.leevalley.com/wood/page.a...77&cat=1,42363

and you can email the staff at leevalley .... they are Very knowledgable about magnets....

[Capt. Carl]

All of My Spyderco's have com magnetized.

off topic but vincent, why pedobear?

[David Lowry]

Hmm.... I didn't realize that the T-Mag's REM was so strong.

In that case it seems like it would be a bad thing. The last thing I would want is to have little metal shavings or what not getting stuck in the thing. I guess before I would buy one I would have to carry a magnet around in my pocket for a week to see if I come in contact with stuff that would not be happy by my magnet.

Daryn, that's exactly what I was thinking about a machine shop.

[DRod]

I wouldn't be able to carry one at work for the sake of my machines. I don't run lathes or anything but my diecasting machines have too many sensors and proximity switches that are magnetized and they are stupid sensitive. My keys ring held a foot away throws them out of wack. I wonder how bad a RE magnet would affect them. Hmm. Ill find out. lol. Worst it will do is stop the program.

[Blades]

I handled the T-Mag today. I don't think the magnet will cause that much of a problem. It holds the blade okay, but I tried to stick it to a metal display case, and it wouldn't grab. It's there, but I don't think it will pull your car keys from across the room.


Blades