Know when to stop and call for help
There is a point where DIY stops being practical and starts becoming expensive optimism. If the key broke while turned in the lock, if the fragment is buried deep, if you can’t get the keyway back into alignment, or if the lock is part of a higher-security or restricted-key system, it is usually smarter to call a locksmith. Most experts explicitly direct customers to contact a locksmith when the situation goes beyond straightforward replacement, pointing users toward support and service resources rather than encouraging risky force-it-yourself repairs. That’s because cylinder damage gets costly fast.