Rotating mechanical pencil, how to change the lead core?

Rotate the mechanical pencil to change the refill like this:

Step 1: Turn the pen clockwise until it stops. At this time, the wire will automatically fall off. Don't turn it too hard. This method must hold the pen cap and rotate the pen holder.

Step 2: Turn a little counterclockwise, put the lead in, continue to turn the pen counterclockwise, and slowly screw the lead in until it is slightly exposed, about 2-3 mm.

The third step: the pen tip is facing down, and this time the problem comes. When the pen tip is facing down, the refill will automatically drop, or it will not drop, but it will drop when the hand touches it. Don't worry, this situation is normal, because the lead has not yet entered the card slot. Just find a smooth and slightly hard material such as a notebook or desktop and press the lead down slightly.