I contacted Tech support at TorkLift for your issue with the Fortress GasLock Kit, # TLA7770. They stated that while they have in the past had a few that fit tightly at first, they have not had any feedback of them not opening or the keys breaking off. You may just need to put a little more force to it. I asked about suggestions to loosen this up, lubricate the tumblers in the barrel. They responded with suggestion of white lithium grease or graphite. But do not use WD40 or something... view full answer...