MotorDigger drill bit is a series of high-speed oil drill bits developed to adapt to underground power drilling tools or high-temperature operations in deep wells. This series integrates advanced cutting structures and diameter preservation technologies in the field of high-speed rock breaking, reliable bearing systems, and efficient hydraulic structure configurations, effectively reducing common early failures such as shell wear, early bearing failure, and low mechanical drilling speed of conventional drill bits in directional or horizontal well construction. The MotorDigger series drill bits are an ideal choice for directional, horizontal, and high-temperature deep well drilling
| Bits size |
Model |
API Thread size
(Inch) |
|
| Inch | mm | ||
| 6″ | 152.4 | MD447GL、MD517GL、MD537GL、MD547GL、MD617GL、MD637GL | 3-1/2″ |
| 8-1/2″ | 215.9 | MD447GL、MD517GL、MD537GL、MD547GL、MD617GL、MD637GL、MD537GLY 、MD547GLY、MD617GLY |
4-1/2″ |
| 8-3/4″ | 222.3 | MD447GL、MD517GL、MD537GL、MD547GL、MD617GL、MD637GL、MD537GLY 、MD547GLY、MD617GLY | |
| 9-1/2″ | 241.1 | MD447GL、MD517GL、MD537GL、MD547GL、MD617GL、MD637GL |
6-5/8″ |
