The cross screw has been used up, so it can be taken out with a wire breaker. If the cost is not too serious, you can use cloth, leather, rubber, rubber bands and so on. Put it on the screw head and weigh it to increase friction to take out the screw.

I choose a professional tool to take out the screws, and the steps are as follows.

1. Install the extractor part 1 on the hand drill.

2. Wipe the surface of the screw and push the head of the extractor into the screw head.

3. Turn the hand drill reversely and turn the gear to the spiral gear.

4. Start reversing and take out the screw.

Precautions:

1, the whole steering is reverse operation. With the operation of hand electric drill, the rotation speed must be slow, not too high or suddenly accelerated;

2. If the broken screw is smooth, it is necessary to drill holes on the broken surface first, otherwise it will slip and cannot be drilled directly.