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Production Drilling System

The Boart Longyear production system for mine development and long hole drill & blast applications includes a threaded shank adapter, couplings, both round and hexagonal extension drill steels—male/male and male/female—and a range of button, blade and retrac bits.

1. Shank Adapter

2. Coupling

3. Exension Hexagon Drill Steel

4. Coupling

5. Extension Hexagon Drill Steel

6. Coupling

7. Extension Round Drill Steel

8. Coupling

9. Extension Round Drill Steel

10. Extension Male / Female Hexagon Drill Steel

11. Extension Male / Female Hexagon Drill Steel

12. Extension Male / Female Round Drill Steel

13. Button

14. Retrac Bit