The Machine Key 3/8 x 1/2 x 2-7/8 Form B is a precision-engineered component made from 1045 steel, designed for reliable performance in mechanical applications. This undersized key is ideal for use in various machinery, providing a secure connection between rotating parts. With dimensions of 3/8 inch in width, 1/2 inch in height, and 2-7/8 inches in length, it fits standard keyways perfectly. The key's robust construction ensures durability and resistance to wear, making it suitable for high-load applications. G L Huyett guarantees that this machine key meets industry standards for quality and performance.