Stouffville Locksmith Services · Whitchurch-Stouffville
Broken Key Extraction: what to note first
Locksmith · Whitchurch-Stouffville, Ontario

That key had been bending a little for years, and you kept straightening it. Today it finally cracked at the deepest cut. The stub is in the lock, and the spare you found goes in a few millimetres and stops against it.
Worth answering before the call
Is it a car key with a chip or remote buttons in the head? Was the lock frozen or the door swollen when it happened? Is any part of the key still visible above the face of the lock?
Part of the key is sticking out. Can I just pull it with pliers?
If a good length shows and the plug is at its normal rest position, a firm straight pull sometimes works. The risk is pushing instead of pulling, or twisting, which drives the piece deeper and can bend a pin. If it does not come on the first gentle try, stop there and leave it for extractor tools, which grip the cuts without loading the cylinder.
Does the glue trick work?
It is a well-known idea and a poor one. A drop of adhesive on the other half rarely bonds to a piece of brass sitting in a tight keyway, and what it does bond to is the cylinder, the pins and the face of the lock. That film then has to be dissolved before proper extractors can slide in. Keep the halves apart and dry.