|
|
|
Used when is necessary bigger diameter
than the external diameter of the covering
pipe.
|
 |
| 2.1/4”
x 3.1/4” 7 API |
Code
|
Bit Diameter
|
Drill Diameter |
Weight
(lbs) |
Weight
(Kg) |
Pol.
|
mm. |
Pol.
|
mm. |
| 05.119.AL.000.060 |
6” |
152,4 |
6.5/8” |
168,2 |
51 |
23 |
| 05.119.AL.000.061 |
6.1/8” |
155,6 |
6.3/4” |
171,6 |
53 |
24 |
|
| |
| |