METHOD: The product is very simple to use, only need to put the screwdriver in the magnetizer/demagnetizer back and forth 1-5 times to achieve magnetization or demagnetization. BASIC EQUIPMENT: The add magnetic device and demagnetizer tool is basic equipment is used for workbench. MAGNETIZING: After magnetizing, the screwdriver will be very convenient in handling the screw. FUNCTION: The product is very suitable for equipment maintenance, because there are many screws need to be screwed down or installed. COMPACT SIZE: The product is compact and will not occupy space on the workbench.