I did not know that. And running scalpels makes a lot more sense for that title. Because as cool as the title sounds, it doesn't make any sense for the movie. Nobody is running blades there.
Cops aren't made of copper either (nor do they belong to the Sus domesticus species), but still...
> Cops aren't made of copper
No, but their badges are. Or were. I guess it's a pars pro toto thing.