More specifically, they are the interface that transfers torque from a tool, such as a screwdriver, t-handle, or drill ... are unquestionably the most common type of screw drive, while hex socket ...

Just this morning, I needed to tighten the handle ... find the screwdriver – fully charged, by the way – resting in its slot of the base and surrounded by 12 flat and Phillips, Hex, Torx ...