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The hook & block are designed and manufactured in accordance with API spec 8C and other related technical standards.
| Hook | DG225 | DG315 | DG450 | DG675 |
| Max.hook load, kN | 2250 | 3150 | 4500 | 6750 |
| Major-hook opening, mm(in) | 190(7 1/2) | 220(8 5/8) | 220(8 5/8) | 238(9 3/8) |
| Diameter of major-hook, mm(in) | 160(6 1/4) | 180(7) | 180(7) | 180(7) |
| Spring travel, mm(in) | 180(7) | 200(8) | 200(8) | 200(8) |
| Overall dimension, mm(L×W×H) | 2545×780×750 | 2953×890×830 | 2950×890×880 | 3156×930×930 |
| Weight, kg | 2180 | 3410 | 3496 | 3900 |
Hook block