Why Keys Break — and Why DIY Removal Attempts Usually Make It Worse
Keys break for more reasons than most people realize. Metal fatigue from years of daily use is the most common culprit — especially with older brass keys that have been duplicated multiple times, each copy introducing slight dimensional inaccuracies that put stress on the blade. Worn lock cylinders that require extra force to turn compound the problem. Cold weather tightens metal tolerances, making it easier for a stressed key to snap mid-turn. In vehicles, ignition cylinders that are stiff due to age or a failing ignition switch dramatically increase the torque a driver applies, and that is when the key snaps at the bow. Whatever the cause, the immediate instinct — grabbing needle-nose pliers, a bobby pin, or a flathead screwdriver and digging inside the keyway — almost always pushes the broken fragment deeper into the cylinder, compresses it further into the pin stacks, or scores the interior of the keyway in ways that make professional extraction significantly harder and, in some cases, require a full cylinder replacement rather than a simple extraction.
The safest and most cost-effective first step when a key breaks inside your lock is to stop, remove any remaining key bow from your hand, and call 757-551-2885. Our technicians answer around the clock and can be en route to your location across Norfolk within minutes. Do not attempt to operate the lock or ignition after a break — applying further rotational force can wedge the fragment so tightly that a straightforward extraction becomes a cylinder replacement job. Leaving tension on the mechanism is the single biggest factor that turns a minor inconvenience into a more expensive repair.