... Standard: API 7 and API spec. 5D O.D 2 3/8, 3 1/2, 4, 4 1/2, 5, 5 1/2,6 5/8 Steel Grade ... : E75, X95, G105, S135 drill pipeapi drill pipe:well drill pipeAPI 7 and API spec. ... 5DSpecification: O.D 2 3/8, 3 1/2, 4, 4 1/2, 5, 5 1/2,6 5/8Steel Grade ... : E75, X95, G105, S135Length:R1: 5.490-6.71R2: 8.23-9.71R3: 11.58-13.72Internal ...