The G L Huyett Machine Key 1/2 x 1/2 x 3-5/8 Form B is a high-quality carbon steel component designed for precision applications. Measuring 1/2 inch by 1/2 inch by 3-5/8 inches, this undersized key is ideal for securing rotating parts in machinery. Its Form B design ensures a snug fit, enhancing the reliability of mechanical assemblies. Made from carbon steel, this key offers excellent strength and durability, making it suitable for use in various environments. This machine key is perfect for automotive, industrial, and manufacturing applications where precision and reliability are crucial.