The Machine Key 3/8 x 1/2 x 2-3/4 Form B from G L Huyett is a high-quality carbon steel component designed for secure shaft and hub connections. This undersized key measures 3/8 inch in width, 1/2 inch in height, and 2-3/4 inches in length, making it ideal for various mechanical applications. Its robust construction ensures durability and resistance to wear, while its precise dimensions guarantee a snug fit in keyways. This machine key complies with industry standards, making it a reliable choice for engineers and technicians.