... 168.3mm Grade: E75,X95,G105,S135 Application: Drill Pipe Drill pipes are steel tubes with threaded ends that are ... rotate the bottomhole assembly along with the drill bit. Drill pipes must be manufactured to withstand severe internal ... destructive inspection are carried out on the finished drill pipes before final coating and packaging. SizeNominal massCalculated ... .19E, X, G, SIEU API 5DP Drill Pipe