The Basic boom (OEM Part No. 3128314427) is a spare part compatible with Boomer 281 and boomer-282 underground drilling rigs. Manufactured from durable alloy steel, it functions as a structural component for the drilling arm main load assembly at the primary boom structural position. It is the foundational load-bearing arm of the drilling unit, supporting the feed beam, rock drill and all attached auxiliary components during tunneling drilling. The high-toughness alloy steel construction resists bending and twisting under heavy mining loads, maintaining stable drilling positioning and reliable long-duration operation.