Hook-blocks are used in the block-and-tackle system of drill service trucks for round trip operations in well repair and stimulation. Hook-blocks are designed for hanging links, elevators and other tools.
| Load capacity, t | 40 |
| Sheave diameter of trough bottom, mm | 580 |
| Rope diameter, mm | 22...23.5 |
| Sheaves pin diameter, mm | 90 |
| Mouth diameter of hook center arm, mm | 90 |
| Side link support mouth diameter, mm | 55 |
| Overall dimensions | |
| - Length, mm | 1782 |
| - Width, mm | 692 |
| - Height, mm | 500 |
| Mass, kg | 450 |