The Rotation Chuck Complete (OEM Part No. 3115531380) is a mechanical spare part compatible with Epiroc rock drilling equipment, including M2D, T1D, Boomer XE3C, Boomer 291, S7D, Boomer L2D, Boomer S2, boomer-282, S1D, and S7D models. Manufactured from durable alloy steel, it serves as a drill steel rotation and clamping component in the rock drill rotation system. The rotation chuck provides secure gripping force, stable rotation transmission, and accurate positioning during drilling operations. Designed for harsh mining environments, this replacement component ensures reliable performance, long service life, and efficient rock drill maintenance.