1) drill pipe od: 2 7/8", 3 1/2", 4", 4 1/2", 5" 5-1/2" 2) steel grade: e75, g105, s135 3) type of end finish: eu-external upset, ieu-internal & external upset 4) all drill rod are made according to api 5d standard 5) we can provide in many conditions, with or without hard banding (arnco100xt, arnco300xt, tungsten carbide etc). Marking, bundling; thread protecors installed on box and pin end