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Tool Joint Code

Drill Pipe

Tool Joint(1in or 2in extension )

Specification

Steel grade

External Diameter(mm)

Internal diameter of male end(mm)

Wrench space of male end(mm)

Wrench space of female end(mm)

NC26

ф60EU

DZ50,R780

86

45

177.8

203.2

G105

85.7

44.5

177.8

203.2

NC31

ф73EU

DZ50,R780

104.8

50.8

177.8

228.6

G105

104.8

50.8

177.8

228.6

S135

111.1

41.3

177.8

228.6

NC38

ф89EU

DZ50,R780

127

65.09

203.2

266.7

G105

127

61.9

203.2

266.7

S135

127

54

203.2

266.7

NC46

ф114IEU

DZ50,R780

158.8

82.6

177.8

254

G105

158.8

76.2

177.8

254

S135

158.8

69.9

177.8

254

NC50

ф114EU

G105

168.3

95.3

177.8

254

S135

168.3

88.9

177.8

254

NC50

ф127IEU

DZ50,R780

168.3

89/82.6

177.8

254

G105

168.3

82.6

177.8

254

S135

168.3

69.9

177.8

254

5½FH

ф139.7IEU

G105

184.2

88.9

203.2

254

S135

190.5

76.2

203.2

254

6 5/8FH

ф168IEU

G105

209.6

120.7

203.2

279.4

S135

215.9

108

203.2

279.4