This 3/4 x 3/4 x 6 inch Machine Key is made from 1045 carbon steel and designed in Form B, providing a robust solution for keyway applications. The undersize specification allows for easy installation and ensures a secure fit in various mechanical assemblies. 1045 steel offers excellent tensile strength and wear resistance, making it suitable for high-stress environments. This machine key is ideal for use in motors, pulleys, and other machinery where reliable torque transmission is critical. Its dimensions are compatible with standard keyway sizes, ensuring versatility across different applications.