So I bought a Steelcase desk on craigslist for $5. The guy didn't have the key to the desk. I found the right key at cubiclekeys.com - lock type "XF" lock # '1234'. Keys are $7 each, free shipping. I buy 2. I get the keys, they won't go in the lock at all. Spray some liquid graphite in the lock, now I can get the keys in, but they won't turn. Then I get smart - spray some Breakfree CLP in the lock (gun cleaner fixes everything, right?), run the key back and forth several times, the key still won't turn. I don't want to drop a lot of $ into the desk - I bought it for my shop to do reloading (I wanted a locking desk so I could lock up the powder & primers to keep my small children away from the stuff). Any ideas on how to get this lock operational? Thanks for all of your help.