ALSACO - 5-211-2 - Magnetizer and Demagnetizer.
Alsaco Industrial Magnetizer and Demagnetizer.
EASY TO USE - Simple design allows you to magnetize and demagnetize screw drivers and bits.
STAY MAGNETIZED LONGER - Powerful rare earth magnet retains magnetism longer.
Use the magnetic bit holder on all steel Hex/Allen/Torx wrenches and screwdrivers.
With the Magnetizer is on the bit increases the strength many times.