OEM‑compatible Rotation Chuck (3115531380) for Boomer M2D, Boomer T1D, Boomer XE3C, Boomer 291, Simba S7D, Boomer L2D, Boomer S2, Boomer-282, and Boomer S1D underground mining drill rigs. Made from hardened steel, this aftermarket spare part ensures durable and reliable rotation performance, supporting efficient and safe drilling operations.