The Arm (OEM Part No. 3128309733) is a spare part compatible with Simba M4C,Simba E7C, 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 systems. The arm provides stable support, connection, and controlled movement for drilling equipment assemblies, ensuring accurate positioning and reliable operation. Its robust construction withstands heavy loads and harsh underground conditions, delivering long service life and dependable performance for mining and tunneling applications.