The Machine Key 3/4 x 1 x 4-3/4 Form B is a precision-engineered component made from high-quality carbon steel. This undersized key is designed for use in various mechanical applications, providing a secure fit for shafts and hubs. With dimensions of 3/4 inch in width, 1 inch in height, and 4-3/4 inches in length, it meets industry standards for performance and reliability. The carbon steel construction ensures durability and resistance to wear, making it suitable for heavy-duty applications. Ideal for use in machinery, automotive, and industrial settings, this machine key is a dependable choice for securing rotating components.