I would presume there would also be ∗some∗ adhesion due to moisture and/or grease (such as might come out of your fingertips from time to time).
If you have any iron filings, you can always see how magnetised yr tweezers actually are.
PG
On 25/10/2011, at 7:00 PM, Tony Smith wrote:
> > If we make the assumption that non- and anti- magnetic mean the same thing
> > then most stainless steel falls into that category. Austenite stainless
> steel ...
> > about 70% of all the stainless produced ... is non-magnetic. If the
> tweezers are
> > stainess then putting it thru the device will do not harm but will also do
> not
> > good.
>
> Austenite stainless is 300 series, usually non-magnetic but can be after
> beaten into shape (work hardening). You need to anneal your tweezers, not
> run them through a demagnetiser. It's only be very slightly magnetic
> though, you can feel a slight attraction to a magnet.
>
> 400 series stainless steel is magnetic - that's what they make fridges,
> microwaves & cutlery out of. Cheaper & less rust resistant.
>
> As others have mentioned most component leads are tin-plated steel/iron
> these days.
>
> Some places sell bamboo tweezers, or you can get a vacuum pen. I like the
> pen, there's fewer 'ping!' 'where did that go?' moments.
>
> Tony
>
>