[Its kind of impressive that Viktor can tighten that thing himself. But Levi supposes if he's had it for any length of time he'd need to learn that. Still, he watches carefully in case he might need to assist later. And when he's asked he picks up the screwdriver.]

Third one...got it.

[He slots the driver in the correct screw and turns it. It starts out a bit faster than needed but he slows it down (possibly almost too slow) instantly. Just needed to know how much force it needed to move.]

A quarter turn? Okay. Let me know if you need me to, uh, stop or something.