It was actually very simple why he had to stick metal pieces on the wind threads with the iron-shell pliers.
Chen Qiyue wanted to make a bomb.
Since the actual strength of the Wind Shadow Worm was much different, he would start from another place and let the power of her ultimate move far exceed her current strength.
Explosions were the best way to improve.
The damage caused by the explosion to the human body was first the shock wave, and second was the fragmentation.
The shock wave that suddenly erupted would throw people up, injure them, or kill them. At the same time, the explosion had the effect of shaking, shattering the internal organs of the person and killing them.
Of course, the debris produced by the explosion of the bomb was also the main method of killing people. It could even cut a person into pieces or even explode into pieces.