This is a 6 pin Yale lock cylinder that has had openings cut into the pin chambers that allow you to see the inner workings of the lock when a key is inserted. You actually can see the pins moving up and down as the key slides into and out of the lock. You will have a full view of the shear line. The key-way is Y4.
This lock comes with 2 keys. One that opens the lock and one that doesn't to show the action of a correct and incorrect key.
This lock can be easily re-keyed without dissembling the entire lock by removing the hex screws on the top of the lock. It comes with spool pins that you can add for extra levels of security.
Yale locks are considered high end locks and have very strict tolerances. Yale locks also have a long key-way which makes them more challenging. This lock will defiantly present a challenge. The Y4 key-way is is not quite as difficult as the Y2 key-way but it is still very challenging. If you are a practicing locksmith or a professional locksmith this cutaway lock is an essential training aid to have. It will help you to improve your understanding of locks and educate your customers.
This Lock also comes with some extra pins and springs to allow you to practice your re-keying skills.
This lock is ideal for training a locksmith apprentice.