How to Lubricate a Lock in a Pinch

Graphite for Locks

Locksmiths have long used powdered graphite to lubricate the workings of locks, and if your key refuses to slide fully into the lock, you can do the same. But there’s an easier (and less expensive!) option than going out and buying a tube of powdered graphite for locks. All you need is a pencil for a substitute door lock lubricant.

A pencil works great for door lock lubricant in a pinch!

1. Simply rub the teeth of the key with a sharp pencil until the surface is covered with graphite.
2. Don’t be shy, load it up with a thick coat! Then insert the key into the lock again, which will deposit the graphite into the lock.
3. Do this several times, if needed, until the key glides in smoothly.