> 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.
I've got a couple of these
http://www.wiltronics.com.au/catalogue/191731/science/tweezers-and-forceps(4th down, TL1054) and some that they no longer stock.
Stainless but has 'non-magnetic' written on them. They don't attract
filing. Whoever was paying $30 for them is paying too much.
All the others I have seem to be chrome plated steel. Amusingly one set of
these has only one arm that's magnetic, with patience I can pick up a 2x5mm
LED. I should claim to have discovered a monopole.
Tony