 
	  | Product Specification | |
| Type specification(inch): | 6 1/8 | 
| Type specification(mm): | 155.6 | 
| IADC: | LYD537 | 
| 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: | 79 | 
| API connection(REG pin): | 3 1/2 REG | 
| Weight on bit(KN): | 0.25-0.64 | 
| Rotary speed(Rpm): | 140-60 | 
| Recommened upper torqueKN.M: | 9.6-12.4 |