The Machine Key 1/2 x 1/2 x 2-3/8 Form B is an undersized key made from 1045 steel, designed for high-strength applications. With dimensions of 1/2 inch in thickness and width, and a length of 2-3/8 inches, this key provides a secure fit for various mechanical assemblies. The 1045 steel construction ensures excellent hardness and wear resistance, making it suitable for demanding environments. This key is engineered to meet industry specifications, ensuring compatibility with standard keyways. Ideal for use in machinery requiring precise alignment and reliable torque transmission.