The 1041N Chicago Key is an uncut key blank that is compatible with a variety of locks and key cutting machines. This key blank is a versatile and reliable option for locksmiths and key cutting professionals. It has a cross reference to Cole CG6, Curtis CG-6, ESP CG6, Ilco 1041N, JMA CHI-5, and Original K4W. This key blank is an essential tool for anyone in the locksmith and key cutting industry.