You absolutely can get hex bits for drill/drivers. Do yourself a favor and pick some up at the hardware store; I refuse to set up knockdown furniture without on

You absolutely can get hex bits for drill/drivers. Do yourself a favor and pick some up at the hardware store; I refuse to set up knockdown furniture without one. That said, be careful to set the torque fairly low. (Invest in a driver with a clutch if you don't have one!) It's way too easy to overdrive the fasteners.