tang (weaponry)

A tang or shank is the back portion of the blade component of a tool where it extends into stock material or connects to a handle - as on a knife, sword, spear, arrowhead, chisel,  file,  coulter,  pike, scythe, screwdriver, etc. One can classify various tang designs by their appearance, by the manner in which they attach to a handle, and by their length in relation to the handle.