1) OD: 2 7/8", 3 1/2", 4", 4 1/2", 5" 5-1/2" ... 2) Steel Grade: E75, X95, G105, S135 3) All drill pipe are made according to API 1) OD ... : 2 7/8", 3 1/2", 4", 4 1/2", 5" 5-1/2 ... Drill Pipe O.D.Steel GradeWall ThicknessUpset EndTool Joint Designationinchmminchmm2 3/860.3E.X.G.S0.1904.83EUNC260.2807.11EUNC262 7 ...