The Arm (OEM Part No. 3128310206) is a spare part compatible with Simba M4C, Simba H1354, SIMBA H1254 underground drilling rigs. Manufactured from high-strength alloy steel, it is designed as a structural component for the arm assembly position in hydraulic and mechanical linkage support structures. The arm provides stable support, connection, and controlled movement for drilling equipment assemblies, ensuring accurate positioning and reliable operation. Its robust construction offers excellent load-bearing capability and durability under harsh underground conditions. This OEM replacement arm supports long service life and dependable performance in mining and tunneling applications.