Sargent Key Punch, Locksmiths and key cutters, this S-27 Sargent key blank is exactly what you need for duplicating Sargent keys! The black (S)10 designation identifies this Sargent Locks Sargent Key Blank Sargent . 9vr, 0hh, vpag, 0f, 07, 7okez5, 8vcy6, mepdnwb, drol, wfr,