Made from high-precision, stress-relieved seamless steel tubesWireline drill rods with heat-treated ends to strengthen threaded jointsPrecision-machined, gauged and treated to mitigate gallingWIRELINE DRILL RODS Standard AWL, BWL, NWL, HWL, PWLT Thread BT, NT, HT, PT Thin Wall ATW, BTW, NTW, HTW CONVENTIONAL DRILL RODS DCDMA AW, BW, BWJ, BWY, NW, NWJ, NWY, HWYMetric 42mm, 50mm, 60mmCASINGS DCDMA Flush-joint AW, BW, NW, HWHWT, PW, SWDCDMA Flush-coupled AX, BX, NX, HX, PX, SX METRIC 44, 54, 64, 74, 85, , 98, 101, 113, 128, 143