The Shaft (OEM Part No. 3128240500) is a wear part compatible with Epiroc rock drills including F9-11, S7D, ROC-D7-11, ROC-D9-11, and S7D-1 models. Made from high-strength alloy steel, it is designed for installation in the drill steel support system at rotating or sliding shaft positions. The shaft ensures smooth mechanical motion, precise alignment, and load transfer within the drill assembly. Its durable, wear-resistant construction provides long-lasting performance under heavy-duty drilling conditions, helping maintain structural integrity, operational stability, and consistent efficiency in underground mining and rock drilling applications.