OEM‑compatible Holder (3128078439) for FlexiROC D65, ROC L6, Boomer M2D, Boomer T1D, ROC L8, Boomer XE3C, Boomer 291, Boomer 281, Simba S7D, Boltec 235, Boltec-MC, Boomer L2D, Boomer S2, Boomer-282, Boomer-M2C, Boomer-MD, PowerRoc-D55, ROC-D7, ROC-D9, ROC PRT50, and Boomer S1D underground drilling equipment. Made from hardened steel, this aftermarket spare part is part of the rotation head assembly, ensuring durable and reliable operation in mining and tunneling applications. Its robust construction extends service life and enhances equipment performance in demanding underground environments.