SON-MAK drill rods and casing tubes are manufactured from the highest quality material to meet the most rigid demands in drilling performances and in manufacturing standards. SON-MAK offers a full range of wire line drill rods for core drilling. All rods are compatible with other DCDMA standard rods and available in all standard industry sizes. SON-MAK using the latest innovative equipment, which ensures outstanding quality that often exceeds world rod manufacturers. The rods are cold drawn, stress relieved, seamless, cold finished and straightened with the newest technology that offers first-rate efficiency and longevity.