The Kampfmesser 42 was a German made dual purpose combat knife

Combat knife

A combat knife is a fighting knife designed solely for military use and primarily intended for hand-to-hand or close combat fighting.Since the end of trench warfare, most military combat knives have been secondarily designed for utility use in addition to their original role as close-quarter combat...

. It was issued to the Wehrmacht

Wehrmacht

The Wehrmacht – from , to defend and , the might/power) were the unified armed forces of Nazi Germany from 1935 to 1945. It consisted of the Heer , the Kriegsmarine and the Luftwaffe .-Origin and use of the term:...

 and Waffen-SS

Waffen-SS

The Waffen-SS was a multi-ethnic and multi-national military force of the Third Reich. It constituted the armed wing of the Schutzstaffel or SS, an organ of the Nazi Party. The Waffen-SS saw action throughout World War II and grew from three regiments to over 38 divisions, and served alongside...

 and was used throughout the Second World War. It was designed as a fighting knife and bayonette. This specific bayonette was longer than the usual bayonettes on rifles, and was commonly used as a hand weapon. Sometimes used as a throwing weapon, when needed, by throwing the weapon as accurately as possible.