2024-07-19
Understand the characteristics of the drill rod. The trolley drill rod is a drill tool that uses an alloy steel pipe to thicken the upsetting heads at both ends, turn the small pitch tapered thread, and connect it with a locking joint. It is used in the field of geological exploration to transmit the drilling torque to the bottom hole drill bit and is responsible for transmitting the drilling fluid. Common connection methods include male and female connections (tapered threads) and joint connect
