
So around four years ago, I went to a local locksmith store, and saw two used Best SFIC locks still in their housings without keys. So, of course, being a lock collector, I went inside the store and asked him (the locksmith) if he would be willing to sell/give them to me. Then, he looked at me funny, and said: "These locks have no keys! What would you want them for anway?" Of course, I was expecting this question, since I was only eleven at the time (What kind of kid would want two old locks without keys lol


Both of these locks were keyed alike (They were both stamped with the key codes "BD1-5"), so that's why I was incredibly lucky to get this set!
First, I took one of the locks, and picked the lock to control

http://imgur.com/wcSUgFa
Next, I carefully disassembled the core with a capping block
http://imgur.com/6Sf5VWh
http://imgur.com/3iNKTPb
Then, to make the operating key, I removed removed the plug from the core and put the key blank in the lock's plug as well as the key pins. (This was a slightly newer Best lock, that's why is has a c-clip on the back)
http://imgur.com/CnZ0CIE
Notice the pins sticking up? The next step is to cut the key until all of the pins align with the shear line. To do this, I used my set of Best A2 Depth and Space keys, and cut the key using my new Wenxing W100A2 key machine. Here's what the plug should look like after all the cuts have been properly made:
http://imgur.com/UEfAr7C
http://imgur.com/kjobedF
Then, once the operating key has been made, you can duplicate as many of them as you need.
Here's the properly cut key working in the other lock (It was keyed alike to the lock I took apart):
http://imgur.com/7Nq47Dy
Next, to make the control key, you must remove the control sleeve from the core and put the master pins inside of it. (Keep the key pins inside the plug, and do not put the driver pins inside yet)
http://imgur.com/E432bpH
Notice how the pins stick up here again? Cut the key blank down progressively using Depth and Space keys until the pins line up with the shear line again.
After all the pins align with the key, you may now re-assemble the lock. To do this, you must remove the master pins in the order you put them in, and then remove the control sleeve from the plug. (Sorry, I forgot to take pictures of this process

Next, put the control sleeve in the lock first, then the plug, and the pins in the right order as well as the springs. Once the lock has been re-assembled properly, you may re-cap the core.
Here's a picture of what my control key looks like when it works properly in the core.
http://imgur.com/SzuJHIP
Finally, copy as many of these keys as you need, and replace the core in the housing! Here's a picture of the final product: (Both locks that were keyed alike are next to each other)
http://imgur.com/nRo6Y6e
http://imgur.com/UBKklom
Have fun on your project!
Boaz