This is the most innovative tool for picking and decoding aSchlage lock that uses any of the common subordinate keyways under the SC20 A1145L high level sectional keyway, including C, E, F, G, H, J, K, and L. This includes the standard 5 pin SC1 key or any other lock that uses the standard SC1 key andSchlage depths and spacings. This tool works withalock even if it has spool pins. The best part is that while you are picking the lock, you are also decoding the lock. That means that you don’t have to take it apart to make a new key for it. Just write down the code as you are picking and then use your code machine or your depth and spacing keys and a standard duplicator to make a key to fit.