The TM19, 1666 Trimark Key is a high-quality uncut key blank that is perfect for locksmiths and key cutting professionals. This key blank is cross-referenced with the Ilco 1666, Ilco EZ TM19, and Original KS700, making it a versatile and reliable choice for your key cutting needs. Whether you need a new key for your car, home, or office, this key blank is an excellent option for ensuring that your locks are secure and functioning properly.