Slim Cognito's Bolt Extractor allows you to turn prison currency from fallen opponents into their bolt equivalents so that Clank can use them.
Item Description, SAC
Slim Cognito's Bolt Extractor is a gadget in Secret Agent Clank created by Slim Cognito. It is used by Ratchet and can convert the Prison Currency of the Prison Planet into standard bolt equivalents, allowing Ratchet to earn bolts that Clank can use to purchase Agency equipment.
Ratchet was granted the device from Slim Cognito after protecting him from vengeful customers in the Prison Exercise Yard.