Should be fired!!!
Why would you make crossbars that need a tool to be adjusted? why not a lever/button/pin whatever else that's part of the bars?
What's the point of the railing being open all the way to the front when the actual bar is not the width of the car? essentially they are limited as to how far you can move them forward.
I just purchased a roof box and had a bit of trouble installing it the way I wanted.