The 1/2 x 1/2 x 2-3/8 inch Form B machine key is crafted from carbon steel and designed as an undersize option for precise fit in keyways. This key is essential for maintaining the alignment and torque transmission between rotating parts in machinery. Its carbon steel construction ensures high strength and resistance to wear, making it suitable for demanding applications. The undersize design allows for easier installation and adjustment, meeting industry standards for quality and performance. Ideal for use in various mechanical assemblies and equipment.