Can anyone shed some light on this sentence for me?

Нож, которым ничего не стоит вспороть брюхо этому щитку и нащупать в нем защелку. Ну где же она?!

I have translated it as:
A knife, which would have no problem ripping open the front of this panel and seeking out the latch. Now where on earth is it?!

Is the where is it? bit talking about the latch?


Thanks!