Re: De-magnetising Tools
I believe you need to stick them in the bore of a reasonable sized solenoid, then feed the coil with an AC supply you can wind up and down slowly. A Variac feeding a suitably rated transformer will do. Wind it up, then wind it back to zero slowly.
__________________
....__________
....|____||__|__\_____
.=.| _---\__|__|_---_|.
.........O..Chris....O
|