| Product Specification | |
| Type specification(inch): | 8 1/2 |
| Type specification(mm): | 215.9mm |
| IADC: | 127 |
| Additional features: | G |
| Formation: | Soft Formation of Low Crushing Resistance and High Drillability |
| Drilling condition: | rotary drilling、high temp.drilling、deep drilling、motor drilling |
| Bearing Type: | journal bearing |
| Total teeth count: | 63 |
| Gage row teeth count: | 29 |
| Number of gage rows: | 3 |
| Number of inner rows: | 5 |
| Journal angle: | 33° |
| Offset: | 8 |
| API connection(REG pin): | 4 1/2 |
| Weight on bit(KN): | 76-216 |
| Rotary speed(Rpm): | 300-60 |
| Recommened upper torqueKN.M: | 16.3-21.7 |