I see in the new Micro-Mark cataloge they now have a demagnetizer, part number 87912, for $18.95. Though of a different shape, it appears to be of the same type I have been using for many years.
When using these, you should withdraw the tool from the demag slowly before turning off the current. If you don't the tool may take the polarization of the alternating current when the current is suddenly shut off.
When using these, you should withdraw the tool from the demag slowly before turning off the current. If you don't the tool may take the polarization of the alternating current when the current is suddenly shut off.