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 Spool version is perfect for learning how to pick more advanced locks. These high security pins are designed to bind and give what is called false set. False set will give to the feedback of having properly lifted the pin to the sheer line when in fact it has not been properly set. With a cut away spool pin lock you will be able to see and feel false set and learn how to apply it in the field.