Allen vs Torx vs Phillips vs Slotted: Which Screw Drive Is Best?

The drive is the interface between a screw and the tool used to install it. Allen, Torx, Phillips and slotted drives can all be found on metric machine screws, but they behave.

The drive is the interface between a screw and the tool used to install it. Allen, Torx, Phillips and slotted drives can all be found on metric machine screws, but they behave.