The Dr. St. Supp. Half (OEM Part No. 3128324708) is a mechanical spare part compatible with Epiroc Boomer 282 and BOOMER-M2C underground drilling rigs. Manufactured from durable alloy steel, it functions as a drill steel support and guiding component installed in the rock drill front head position. This component helps maintain accurate drill steel alignment, reduce vibration, and improve drilling stability during operation. Designed for demanding underground mining environments, it provides excellent strength, wear resistance, and long service life. Precise OEM dimensions ensure reliable replacement performance and easy installation for drilling equipment maintenance.