Some ways to replace toolbox keys are to call the toolbox manufacturer to replace the key, consult with a locksmith to cut a new key or rekey the lock by using instructions and a brand-specific rekeying kit. Instructional videos can be found online, while rekeying kits are available at hardware stores and online from websites such as HomeGardenPro.com
Rekeying a toolbox lock is similar to any cylinder-type lock. In order to obtain replacement keys for a toolbox, the easiest way is to consult the number on the outside of the lock and call the manufacturer to find the availability of a replacement. Replacement keys range from a few dollars to more than $50 per key as of 2015, notes FamilyHandyman.com.
When attempting to rekey the lock, a rekeying kit is necessary, and it must be compatible with the lock brand. Calling or checking hardware and locksmiths or websites can provide information on the cost and availability of the kit.
Rekeying is a process of removing the lock cylinder, retaining the ring and cylinder plugs and replacing the existing pins to match the new key's configuration. The kit includes instructions to properly assemble the pins. Once the pins are replaced, reassemble the lock and replace it on the toolbox.