Can't be done unless you work at a scrap yard and attach it to a magnetic car hoist.
> Can’t be done unless you work at a scrap yard and attach
> it to a magnetic car hoist.
:)
Here’s a commercially available bulk eraser/degausser.
http://www.magnetechcorp.com/Hard_drive_eraser.htm
Very pricey, though.
Better to just swallow the cost of a new drive, and use the old one for target practice.