The Machine Key 3/4 x 1-1/2 x 5-3/4 Form B is a precision-engineered component made from Cbn steel, designed for secure fastening in mechanical assemblies. This undersized key features dimensions of 3/4 inch in width, 1-1/2 inches in height, and 5-3/4 inches in length, ensuring a perfect fit in keyways for reliable operation. Ideal for use in various machinery and automotive applications, this machine key meets industry standards for quality and performance, making it a vital component for any assembly requiring secure fastening.