The National Key Blank RO13 is an uncut key blank that is compatible with a variety of key cutting machines. This versatile key blank is cross-referenced with the Cole RO3, Ilco N1069B, Ilco EZ RO13, JMA NTC-6, and Original D8786 key blanks, making it a great choice for locksmiths and key cutting professionals who need a high-quality, reliable key blank for their clients. This key blank is ideal for use in residential, commercial, and automotive locks, and is an essential tool for any professional key cutter.