- Screwdriver, tool, usually hand-operated, for turning screws with slotted heads. For screws with one straight diametral slot cut across the head, standard screwdrivers with flat blade tips and in a variety of sizes are used
- Flathead screwdrivers range in size from mere millimeters up to bigger fractions of an inch.
- The tool used to drive a slotted screw head is called a standard, common blade, flat-blade, slot-head, straight, flat, flat-tip, or “flat-head”
- A screwdriver is a tool, manual or powered, for screwing (installing) and unscrewing (removing) screws