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Secondly, the helical shape of the rod imparts a twisting motion to the bit as it rotates, which aids in maintaining a consistent cutting action. This reduces walking or drifting of the drill, ensuring more accurate hole placement This reduces walking or drifting of the drill, ensuring more accurate hole placement This reduces walking or drifting of the drill, ensuring more accurate hole placement This reduces walking or drifting of the drill, ensuring more accurate hole placementspiral drill rod. Additionally, the spiral design helps to distribute heat generated during drilling, reducing the risk of thermal damage to the workpiece or the drill rod itself.