IADC: 615 is TCI sealed roller bearing bit with gauge protection for medium hard formations with high compressive strength. Mining tricone bit is one of the main tools for blast hole and well drilling. Its life span and performance whether suitable for drilling or not, that has an great influence about the quality, speed and cost of drilling project. The rock breakage by the tricone bit which used in mine is working with both the impact of teeth and the shear caused by slippage of the teeth, which bring high rock breaking efficiency and the low operation cost. 
| Basical Specification | ||
| IADC Code | IADC615 | |
| Size of Rock Bit | 9 7/8 inches | 10 5/8 inches |
| 251mm | 269mm | |
| Thread Connection | 6 5/8” API REG PIN | |
| Product Weight: | 65KG | 74KG |
| Bearing Type: | Roller-Ball-Roller-Thrust Button/Sealed Bearing | |
| Circulation Type | Jet Air | |
| Operating Parameters | ||
| Weight on Bit: | 29,618-49,196Lbs | 31,880-53,130Lbs |
| Rotary Speed: | 100-60RPM | |
| Air Back Pressure: | 0.2-0.4 MPa | |
| Ground Description: | Medium hard and abrasive rocks such as sandstones with streaks of quartz, hard limestone or chert, hematite ores, hard, well-compacted abrasive rock such as: sandstones with quartz binder, dolomites, quartzite shales, magma and metamorphic coarse grained rocks. | |
