The Shaft (OEM Part No. 3128323910) is a spare part compatible with Boomer M2D, Boomer S2, Boomer M2C, Boomer S1D underground drilling rigs. Manufactured from high-strength alloy steel, it serves as a mechanical component for the Boomer drill rig mechanical drive system at the shaft assembly position. It provides reliable power transmission, accurate positioning, and stable connection between mechanical drive components during drilling operations. Designed for harsh underground mining environments, this alloy steel shaft withstands heavy loads, vibration, and continuous operational stress. Precise OEM dimensions ensure smooth installation, dependable performance, and extended service life of drill rig drive assemblies.