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Integral Spiral Heavy Weight Drill Pipe Integral spiral heavy weight drill pipe is to extend the central upset of heavy weight drill pipe and to cut spiral groove on heavy weight drill pipe.Technical specifications and parameters Sizemm(in) Pipe Body Tool Joint I.D. mm Elevator upset mm Elevator/slip groove O.D.mm Spiral O.D.mm Spiral depth mm Connection O.D.mm I.D.mm 88.9(3 1/2) 54.0 92.1 88.9 101.6 9.5 NC38 120.6 54.0 114.3(4 1/2) 69.8 117.5 114.3 127.0 12.7 NC46 158.8 69.8 127.0(5) 76.2 130.2 127.0 139.7 12.7 NC50 165.1 76.2 All technical specifications and parameters only provides for reference. spiral heavy weight drill pipe
