A Wrench is a general purpose tool. The Wrench is generally used to repair many objects and can also be utilized as a weapon. It is used as such in the Battlefield Series.
The Wrench is a gadget issued to the Engineer Kit in Battlefield Vietnam. It functions similar to Battlefield 1942, having to cool down after a designated amount of time after repairing.
In Battlefield 2, the Wrench is issued to the Engineer kit. After a short animation, where the user widens the mouth of the wrench, the player can use it to repair friendly or neutral vehicles. It can also rebuild bridges which have been damaged or destroyed by C4 or other explosives.
The wrench in Battlefield Heroes functions similar to bandages, restoring armor over a brief period of time. Only the driver of a vehicle may repair it. Wrenches also put out fires caused by Burning Bullets. Should the vehicle receive further damage, the repair effect is cancelled.
Each wrench has a limited number of uses, and must be purchased with Valor Points. Only one kind of wrench can be equipped at a time.
Can repair friendly vehicles
In Battlefield 1943, the Wrench is issued as the melee weapon and vehicle repair tool for the USMC (M12 variant) and IJN (Type 12 variant) Infantry kits. Used against infantry, it is a one-hit kill, just like all melee weapons in the game.