Learn to lock pick with Sparrows cut away locks. These practice cylinders will help you to learn and improve your lock picking skills. With the ability to see the internal working of the lock you gain the benefit of seeing how different picks can manipulate each pin. Sparrows Cut away locks come in with standard or High security pins. Currently all our cut away designs feature a barrel key with a schlage keyway This five pin Serrated version allows you to work on this specialized security pin. With several notches serrated pins bind in a very unique way. Serrated pins will give the picker a false set and at time may bind in the lock. With a cut away window the benefit of seeing and feeling the way serrated pins set and bind at the sheer line is invaluable. Available in Left and Right handed options - This determines what side the lock window is cut on. If you hold a pick or pencil in your left hand you want to choose the left option.