Death Springs are devices in Tools of Destruction. The device throws a bomb capsule that explodes releasing sixteen Death Springs, small orange spring coils that move around and explode upon making physical contact with an enemy. Death Springs cost 15,000 bolts, are available upon reaching Meridian City, Igliak, at the device vendor, and three can be carried at once. The springs will automatically home in on on nearby enemies, with each spring disappearing after a single hit, or after sixty seconds has passed.
Although the damage of each spring equals 100% of Ratchet's nanotech level, and with sixteen springs this does add up, the fact that after a single hit each spring vanishes means it is only useful against stronger enemies, as anything weak can be considered a waste. Even so, at the cost of 15,000 bolts using the device is an exorbitant cost when weapons like the Negotiator are much cheaper.