On Sat, 3 Aug 2019 22:50:38 -0700 (PDT), A K wrote:

I am trying to demagnetize this vise grips.
https://imgur.com/a/LrrnOEV

If you have a soldering gun...

Energize the gun and slowly move each tip of the vise grips in and out of the loop of the
soldering gun tip.

--
croy