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.