Definition:
A 'tang' is the protrusion of the steel into the handle of a knife or tool.
The knife tang can be either full tang, meaning that it extends into the full length of the handle, or partial tang, extending only part way into the handle as a socket or file end.
The tang extension into the handle not only provides a way of attaching the handle, but improves the weight and balance of the knife, and adds strength and durability.
Examples:
Professional quality chef's knives will generally have a full tang, with riveted handles. Steak knives commonly have a partial tang, with handles that have been poured or molded around the tang.
