Drilling Tools 1. Core lifter, Core-lifter case, Extension tube 2. Core Barrel 3. Thread Joint Pin 4. Joint Pin of Drilling Rod 5.Joint Pin of Rock-core Barrel 6. Joint Pin of Barrel 7. Joint Pin of Mini-Diameter (Male) 8. Joint Pin of Mini-Diameter (Female) 9. Wireline Drill Tools-Joint Pin of Drilling Rod (Male) 10. Wireline Drill Tools-Joint Pin of Drilling Rod (Female)