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Tricone Bit

 

 

 

 

Recommended torque by bit size

           

Bit size

API screw

Recommended torque

in

mm

in

mm

ft-lbs3

N-M

3 1/2~4 1/2

89~114

2 3/8 REG.

60

3000-3500

4000-4800

4 5/8~5

118~127

2 7/8 REG.

73

6000-7000

8000-9500

5 1/8~7 3/8

137~187

3 1/2 REG.

89

7000-9000

9500-12000

7 5/8~9

194~229

4 1/2 REG.

114

12000-16000

16000-22000

9 1/2 ~28*

241~711

6 5/8 REG.

168

28000-32000

38000-43000

14 3/4~28*

375~711

6 5/8 REG.

168

28000-32000

38000-43000

 

 

7 5/8 REG.

194

34000-40000

46000-54000

18 1/2~28*

470~711

7 5/8 REG.

194

34000-40000

46000-54000

 

 

8 5/8 REG.

219

40000-60000

54000-81000

* Torque is largely related to a standard for a connected screw by bit size.

 

 

 

 

 

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