TIP:1.The product is stored in the warehouse for a long time, and the screwdriver may be demagnetized due to various force majeure factors.
2.It is normal phenomenon about some screwdrivers are not magnetic. You can use the magnetizer make it magnetic.
3.The Test pencil (Electroprobe ) is not magnetic, only for detecting the presence, sign, and in some configurations the magnitude of an electric charge.