The throwing knife spear is similar in shape and design to the knife spear, except it has only one cosmic knife aerodynamically tied to the end of it.
Compared to standard throwing spears, throwing knife spears have a slightly higher weight and lower damage. However, throwing knife spears have a high (2x) limb damage modifier, while standard throwing spears lack any limb damage bonus.
Throwing knife spears are used to create and maintain the knife spear.
Throwing knife spears can be used to repair both knife spears and knife spears clean. Owing to the thrown weapon's high health, as well as normally being found in perfect condition, this will repair either of the melee weapons to perfect condition.