The Extender (OEM Part No. 3222310454) is a mechanical spare part compatible with Epiroc drilling equipment, including T1D, S2C, Boomer XE3C, Boomer 291, Boomer 281, S7D, Boomer L2D, BOOMER-M2C, ROC-D7, ROC-D9, and related models. Manufactured from high-strength steel, it functions as an extension component in the drill feed system. The extender supports feed system adjustment, improves drilling flexibility, and enhances equipment operation stability. Designed for underground mining conditions, this replacement mechanical component provides excellent strength, reliable performance, and long service life.