DTH drill rods are one most important spare part in DTH drilling technology, they are made by seamless high quality of alloy tubes. According to different application, different diameters of drill tubes are needed, basically, smaller DTH hammers need smaller DTH drill tubes, vice versa.
Usually we are offering 76mm, 89mm, 102, 114mm,etc. Our all DTH drill tubes are friction welded, and usually the threads are standard API Reg. or API IF, like 2 3/8" API Reg thread, 3 1/2" API reg thread or API IF thread,etc. According to customers request, from 1000mm to 8000mm length of tubes are available.