Product Specification | |
Type specification(inch): | 4 1/2 |
Type specification(mm): | 114.3mm |
IADC: | 217 |
Additional features: | G |
Formation: | Medium to Medium Hard Formation of High Crushing Resistance |
Drilling condition: | rotary drilling、high temp.drilling、deep drilling、motor drilling |
Bearing Type: | journal bearing |
Total teeth count: | 72 |
Gage row teeth count: | 41 |
Number of gage rows: | 3 |
Number of inner rows: | 4 |
Journal angle: | 36° |
Offset: | 5 |
API connection(REG pin): | 2 3/8 |
Weight on bit(KN): | 57-137 |
Rotary speed(Rpm): | 300-60 |
Recommened upper torqueKN.M: | 4.1-4.7 |