The LD2, 1640 Larson Door Key is an uncut key blank that is ideal for locksmiths and key cutting professionals. This key blank has cross reference numbers for Ilco (1640), Ilco EZ (LD2), and JMA (LRD-1), making it a versatile option for a variety of applications. Whether you need a replacement key for a Larson Door or simply need a blank to make copies of an existing key, this uncut key blank is a great choice.