Description
RockForce Box-Box Adapters are designed to connect DTH drill tubes or drill string components with different thread sizes where both connecting ends have female (Box) threads.
In drilling terminology, a Box refers to a female thread, while a Pin refers to a male thread. A Box-Box Adapter provides a secure connection between two Box-threaded components, allowing different thread sizes or configurations to be incorporated into the same drill string.
Manufactured for demanding drilling applications, RockForce Box-Box Adapters provide a strong, reliable connection while maintaining correct alignment and efficient transfer of drilling forces.
Key Benefits
• Connects two female (Box) threaded components
• Allows different thread sizes to be connected
• Strong and reliable drill-string connection
• Maintains correct alignment between components
• Suitable for DTH drilling applications
• Available in various thread sizes and configurations
• Durable construction for demanding drilling conditions
| Connection | Length (mm) |
Length Shoulder (mm) |
Width Spanner Flats (mm) |
Std Bore (mm) |
Outside Diameter | Across Flat (mm) |
||
|---|---|---|---|---|---|---|---|---|
| Box Up A | Thread Type (B) | Top D1 (mm) |
Bottom D2 (mm) |
|||||
| API 2 3/8″ REG | API 2 3/8″ REG | 219 | 57.1 | 50.8 | 38.1 | 88.9 | 88.9 | 69.85 |
| API 2 7/8″ REG | API 2 3/8″ REG | 219 | 69.85 | 50.8 | 38.1 | 114.3 | 88.9 | 98.4 |
| API 2 3/8″ REG | API 3 1/2″ REG | 128.6 | 57.1 | 50.8 | 38.1 | 88.9 | 114.3 | 69.8 |
| API 3 1/2″ REG | API 3 1/2″ REG | 241.3 | 69.85 | 50.8 | 44.45 | 114.3 | 114.3 | 98.4 |
| API 3 1/2″ REG | API 4 1/2″ REG | 269.8 | 88.9 | 50.8 | 58.7 | 114.3 | 146 | 98.4 |
| API 2 7/8″ REG | API 3 1/2″ REG | 241.3 | 69.85 | 50.8 | 44.45 | 114.3 | 51.7 | 98.4 |
| API 4 1/2″ REG | API 2 7/8″ REG | 250.8 | 76.2 | 50.8 | 44.45 | 114.3 | 146 | 98.4 |
