Discover the Durable DCDMA Standard Wireline Drill Rods with Optimized Thread Accuracy, designed for well drilling and deep hole applications. Available in diameters of 42mm, 50mm, 60mm, and 73mm, these high-strength alloy steel rods come in lengths of 1m, 1.5m, 3m, and 6m. Manufactured in China, they meet DCDMA standards for reliable performance in BQ, NQ, HQ, and PQ drill pipe applications.