Description
RockForce Pin-Box Adapters are designed to connect DTH drill tubes or drill string components with different thread sizes or configurations.
In drilling terminology, a Pin refers to a male thread, while a Box refers to a female thread. A Pin-Box Adapter provides the connection between a component with a male (Pin) thread and another with a female (Box) thread, allowing different components to be securely integrated into the same drill string.
Manufactured for demanding drilling applications, RockForce Pin-Box Adapters provide a strong, reliable connection while maintaining correct alignment and efficient transfer of drilling forces.
Key Benefits
• Connects male (Pin) and 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 F (mm) |
||
|---|---|---|---|---|---|---|---|---|
| Box Up A | Thread Type (B) | Top D1 (mm) |
Bottom D2 (mm) |
|||||
| API 2 3/8″ REG | API 2 3/8″ REG | 140 | 50.8 | 65 | 24 | 88.9 | 88.9 | 69.85 |
| API 2 3/8″ REG | API 2 7/8″ REG | 134.9 | 69.85 | 50.8 | 31.75 | 88.9 | 88.9 | 69.85 |
| API 2 3/8″ REG | API 3 1/2″ REG | 146 | 39.7 | 50.8 | 25.4 | 114.3 | 88.9 | 98.4 |
| API 3 1/2″ REG | API 3 1/2″ REG | 101.6 | 39.7 | 50.8 | 44.45 | 127 | 127 | 98.4 |
| API 3 1/2″ REG | API 4 1/2″ REG | 134.9 | 39.7 | 50.8 | 52.4 | 114.3 | 146 | 98.4 |
| API 2 7/8″ REG | API 2 3/8″ REG | 134.9 | 39.7 | 50.8 | 31.75 | 88.9 | 88.9 | 69.85 |
| API 2 7/8″ REG | API 3 1/2″ REG | 134.9 | 39.7 | 50.8 | 44.45 | 114.3 | 114.3 | 98.4 |
| API 2 7/8″ REG | API 4 1/2″ REG | 174.6 | 100 | 50.8 | 44.45 | 114.3 | 146 | 98.4 |



