The Holder (OEM Part No. 3128257578) is a wear part compatible with Boltec MC, Boomer MD, and 235 bolting rigs. Made from high-strength alloy steel, it is designed for installation in the drill steel support system at rod or cradle holding positions. The holder ensures secure clamping, precise alignment, and reliable support for drill steel during operation. Its durable, wear-resistant construction delivers long-lasting performance under demanding underground mining conditions, maintaining mechanical stability, consistent drill feed, and operational efficiency for bolting and tunneling equipment.