Changsha Drilling Machinery CO., LTD

The Drag Bits can penetrate softer formations such as stiff clays and mudstones very quickly. Usually used for construction or other site investigation projects. It has two types, Step Type and Chevron Type.
Generally, available with following sizes: 

 

Diameter (Inches)

Connection Pin Type

Chevron Type

Step Type

2-7/8"

AW Rod

Available

Available

3-1/2"

NW Rod

Available

Available

3-3/4"

2 3/8” API REG 

Available

Available

4-3/4"

2 3/8” API REG

Available

Available

5"

2 3/8” API REG

Available

Available

5-1/8"

2 3/8” API REG

Available

Available

5-3/4"

3-1/2” API REG

Available

Available

6"

3-1/2” API REG

Available

Available

6-3/4"

3-1/2” API REG

Available

Available

7"

4-1/2” API REG

Available

Available

7-1/2"

4-1/2” API REG

Available

Available

8"

4-1/2” API REG

Available

Available





 

 

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