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Drill collar

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Drill collar

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Place of Origin : China (Mainland)

Brand Name : kerui

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Detailed Product Description

Drill collar

Operative Standards: API Spec 7API Spec RP7G

Drill Collar Specifications:

Thread Type

OD / D

ID / d

Length /L
mm

mm

in

Mm

in

NC26-35

88.9

3 1/2

31.8

1 1/2

9150

NC35-47

120.7

4 3/4

50.8

2

9150

NC46-62(4IF)

158.8

6 1/4

71.4

2 13/16

9150 or 9450

NC46-65(4IF)

165.1

6 1/2

57.2

2 1/4

9150 or 9450

NC50-70(41/2IF)

177.8

7

71.4

2 13/16

9150 or 9450

NC56-80 65/8REG

203.2

8

71.4

2 13/16

9150 or 9450

NC61-90 75/8REG

228.6

9

71.4

2 13/16

9150 or 9450

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