Introducing SINOCOREDRILL's Friction-Welded NQ Wireline Drill Rod, engineered for deep hole drilling with precise double start threading. Made from high-strength alloy steel, it comes in lengths of 1m, 1.5m, 3m, and 6m, and offers diameters of 42mm, 50mm, 60mm, and 73mm. Certified with ISO9001 and CE, it ensures top performance in demanding environments. Elevate your drilling operations today! Welcome to visit our website!