A stiletto is a short knife or agger, with a long slender blade of various designs. This dagger is primarily a stabbing weapon, its narrow shape ending in a rigid pointed end allows it to penetrate deeply. It is not suited for cutting, even with edged examples. A typical early stiletto was a one piece cast metal handle and blade, that was then hammer forged in a "V" groove anvil producing a triangular blade cross section without any sharpened edges. Other examples have round, square and diamond cross sections. The word stiletto may sometimes be used in American English to refer to a switchblade. Stiletto may also be used specifically for a knife exhibiting the same triangular cross-section and hollow grind as a small sword.