ELLSWORTH AIR FORCE BASE, S.D. -- The 28th Maintenance Squadron tool crib maintains and accounts for a multitude of tools used by the aircraft maintainers who keep the B-1s at Ellsworth Air Force Base flight-worthy and ready to deploy at a moment’s notice. The tool crib Airmen distribute the maintenance equipment, as necessary, and also make sure the tools are returned when no longer in need. The unit’s goal is to ensure that Airmen working on the B-1s will always have the right tool to get the job done.