This hardened steel pin is produced as a compatible replacement for OEM part number 0501000072 and is used in the rotation head assembly of drilling equipment. It is designed to maintain rotational stability and effective load transfer under high torque conditions. The pin offers excellent resistance to wear and deformation in harsh mining environments. It is suitable for use on M4C, M40S, Simba H1354, Simba H1254, and M4C ITH drilling machines.