Why Worn Key Blades Can Damage Your Car's Locks and Ignition
How a Worn Key Blade Causes Trouble A key that has seen years of daily use may still turn in the lock, but that does not mean it is working properly. Over time the metal edge of a key blade wears down, becoming rounded and slightly thinner. This gradual change might seem minor, but it alters how the key interacts with the pins and springs inside a lock cylinder or ignition switch. When the blade no longer matches the original key code precisely, the lock mechanism has to co
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