Can the shield machine's cutterhead be replaced with a drill bit?
If someone else asked this question, the staff might not even bother to answer, simply rolling their eyes and dismissing it.
But since it was Chen Xin who asked, the staff had to seriously consider how to respond and explain so that Chen Xin would understand it's impossible, while also saving his face.
However, even so, the staff still believed this idea to be impossible.
Although the shield machine's cutterhead is akin to a massive drill bit, the staff understood that Chen Xin meant replacing the flat large cutterhead at the front of the shield machine with a pointed drill bit.
After all, in many people's eyes, those pointed drill bits are highly efficient at boring holes, to the point where many cartoons or sci-fi works feature machines with large drill bits at the front to rapidly dig through soil.
