As if Kaden didn't know what a torque wrench was. As if he hadn't learned how to walk with one hand for balance against the side of a car. Kaden could have said something sarcastic maybe, could have picked up a screwdriver instead as a joke, or he could leave it, not be a dick, and find some other way to show off what he knew.
He picked up the torque wrench and came closer, looking into the engine. "You doing something to the brakes?" he asked, pretty sure that Cathal was doing something to the brakes.