Use drill on door knob.
Jesus forget guys.
>UNLOCK THE DOOR WITH THE DRILL

THE KEY SHAPE OF THE DRILL WORKED!

YESSSS. I FINALLY GOT A SINGLE INTELLIGENCEZ.
Dang it, i totally forgot about that..
>Drill the door knob
You didn't get it? Whenever you asked for a key, you get a drill. Whenever you ask for drill, you get a key!