The sub-assembly parts of the auger represent crucial components that are integrated into digging machines or excavators, playing a pivotal role in hole digging and earth boring operations. Crafted from a combination of C20 carbon steel and 8630 alloy steel, these parts are engineered for strength and durability to withstand the demanding conditions of excavation tasks. The manufacturing process involves precision machining to achieve precise dimensions and tolerances, followed by expert welding to ensure the robustness and structural integrity of the assembly. Additionally, a final touch of painting not only enhances aesthetics but also provides protection against environmental factors. These sub-assembly parts are essential for the efficient and reliable performance of digging machinery in various earthwork applications.