Abstract: A proximity sensing toolbox lock is disclosed. A special motor powered autolock assembly is disclosed that attaches to convention tool boxes by pass through a standard “Double-D” profile keyhole to engage and move a 90 degree lock mechanism in response to an electrical or manual signal, A manual override is provided to disable the automatic operation if desired so that the lock can be operated by a key. Likewise, an override is provided to bypass the key lock and instead manipulate the lock using the assembly and not the manual (key) lock. The exemplary lock and autolock assembly can be adapted to a wide variety of containers and storage cabinets.