This pin is a wear part compatible with OEM part number 3128003116 and is designed for underground drilling equipment. Manufactured from hardened steel, it provides excellent wear resistance and mechanical strength for use in the rotation head assembly. The pin ensures reliable connection and stable operation under high-load and high-impact drilling conditions. It is suitable for E70, M4C series, Simba E7C, M40S, Simba H1354, and M4C ITH drilling rigs.