The tip of the driver bit inserts into a depression that has been machined into the top of screw head in a male tool / female fastener configuration ... Slotted and Phillips drives are unquestionably ...
These fasteners are easily recognized by the six-sided socket in the screw head, which gives a clue to the tool’s alternate name: “hex key.” Allen wrenches, or hex keys, come in a variety of ...
A socket wrench, or “ratchet,” consists of three parts. On one end is a square fitting that accepts different sizes of cylindrical sockets. These sockets fit around the fastener head ...