Double heads - Double tube core barrel T2, T6 and T6S Type
 Double tube core barrel T2 type- Double heads |
 Double tube core barrel T6, T6S type- Double heads |
| Double heads | |
| 56 T2 | 86 T2 With drainage device |
| 66 T2 | 101 T2 |
| 76 T2 | 101 T2With drainage device |
| 86 T2 | |
| Double heads |
| 86 T6 |
| 101 T6 |
| 116 T6 |
| 131 T6 |
| 141 T6 |
| 86 T6S |
| 101 T6S |
| 116 T6S |
| 131 T6S |
 Double tube core barrel T2, T6 and T6S type- Reinforced heads |
| T.C. Reinforced heads |
| Double heads |
| 66 T2 |
| 76 T2 |
| 86 T2 |
| 101 T2 |
| 116 T2 |
| 86 T6S |
| 101 T6 |
| 116 T6 |
| 141 T6 |
| 101 T6S |
| 116 T6S |
| 131 T6S |