This universal jacka technique of jacking is utilized at the or bottom of a structure. Extensively used in along with socket base, heads and drop head .
| Tube Length : | 32, 34, 38 |
| Size (mm) : | 450, 500, 610, 700 |
| Plate : | 150 x 150 x 5 |
| Nut : | Casted, Forged (with orwitout wings) |
| Thread : | 4TPI |
