1. When changing the electric screwdriver bit, prepare an electric screwdriver and a φ4 screwdriver bit.
2. When changing the bit of the electric screwdriver, you need to press down the shaft cap of the electric screwdriver with your female finger, so that the steel ball of the screwdriver head will rebound and the shaft will leak out.
3. When changing the electric screwdriver bit, you need to lower the screwdriver head to align the card position, loosen the shaft cap and install it.
4. When changing the bit of the electric screwdriver, it is necessary to pull the bit to determine whether it is installed in place.
5. When changing the head of the electric screwdriver, make sure that the electric screwdriver can lock the screws after the installation is complete.