Magnetizer / Demagnetizer Keychain

Magnetize and demagetizer your screwdrivers or other tools with this keychain magnetizer. This requires four 10x3mm or two 10X6mm neodymium magnets. IMPORTANT: YOU MUST BE SURE TO PLACE THE MAGNETS IN THE SLOTS SO THEY REPEL EACHOTHER (LIKE POLES MUST FACE EACH OTHER)OROperation: Run your ferrous metal tool/object through the “MAG” portion to magnetize or through the “DEMAG” side to demagnetize. Running the object through multiple times seems to work better. When demagnetizing, keep the object close to the arc on the bottom for best results.