It is lightweight, easy to use, easy to move, easy to distort, easy storage, can be hung flat, will not be affected by a long flat straightness, parallelism, not easy to rust.
2007D with three bubbles, three sides end millings.
| Spec | Qty(pcs) | Meas(cm) | G.W./N.W.(kg)11.5/10.5 |
| 12"/300 | 60 | 31.5×36×34 | 11.5/10.5 |
| 16"/400 | 60 | 41.5×36×34 | 13/12 |
| 20"/500 | 60 | 51.5×36×34 | 14.5/13.5 |
| 24"/600 | 60 | 61.5×36×34 | 16/15 |
| 32"/800 | 30 | 81.5×30×21 | 10/9 |
| 40"/1000 | 30 | 101.5×30×21 | 11.5/10.5 |