The S4 / 1010U / SAR-5D Sargent is a key blank designed specifically for locksmiths and key cutting professionals. This high-quality blank is compatible with Jet, Ilco, and JMA key cutting machines and is ideal for creating new keys or duplicating existing ones. It is also uncut, allowing for precise customization to fit various lock systems. With its durable construction and reliable performance, this key blank is a valuable addition to any locksmith’s toolkit.