| Specifications |
Size 9 1/2" IADC 637 Bearing Type Sealed Bearing Lubrication System Yes Oil Bag Compensation System Yes Alloy Tooth Shape: Spoon |
| Operation Parameters | |
| Applicable Stratum | Extremely soft formations with low compressive strength and drillability, such as clay, mudstone, chalk, gypsum, salt rock, soft shale, soft limestone, etc. |