hole opener
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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