Specifications

Large Diameter Reamer Bit 1. Steel tooth & TCI available 2. 6"-42" in diameter 3. Strict Quality Control System

hole opener drill bit

1.Hole openers are designed for the enlargement of pilot holes and large hole applications.They are also used for road and river crossing application.

Cutting Structure

The reamer mainly consists of four or more cones. Cutting Structure with premium tungsten carbide hardfacing or premium tungsten carbide insert of formulas and new techniques is utilized, and increases wear-resistance capability of reamer. The pilot is three cone bit( tricone bit ).

Seal and LubricationHigh performance HNBR O-ring for bearing seal and advanced grease for lubrication.

Product ApplicationIt is suitable for the large size well, mining and infrastructure applications.

Hole Size

Pilot Hole

Standard Fishing Nick O.D

Thread Type

Upper

Lower

7-5/8

5-5/8

5-1/2~6

4-1/2 REG

3-1/2 REG

8-1/2

5-5/8

5-1/2~6

4-1/2 REG

3-1/2 REG

10-5/8

7-5/8

8

6-5/8 REG

4-1/2 REG

12-1/4

8-1/2

8

6-5/8 REG

4-1/2 REG

14-3/4

10-5/8

8~9-1/2

6-5/8 REG

6-5/8 REG

17

10-5/8

8~9-1/2

6-5/8 REG

6-5/8 REG

17-1/2

10-5/8

8~9-1/2

6-5/8 REG

6-5/8 REG

20

15

8~9-1/2

6-5/8 or 7-5/8REG

7-5/8 REG

24

15

8~9-1/2

6-5/8 or 7-5/8REG

7-5/8 REG

26

15

8~9-1/2

6-5/8 or 7-5/8REG

7-5/8 REG

36

26

9-1/2~10-1/2

7-5/8 or 8-5/8REG

8-5/8 REG

42

26

9-1/2~10-1/2

7-5/8 or 8-5/8REG

8-5/8 REG

 



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