| Feem Li No. | P npt | Qhov ntev (hli) | ||||
| L | S | Tus e | F | |||
| Nti | mm | |||||
| BT-02N | 1/8 | 4 | 22 | 4.8 | 1/2 | 12.70 |
| BT-04N | 1/4 | 29.7 | 29.7 | 7.1 | 11/16 | 17.46 |
| BT-06n | 3/8 | 36.1 | 32.0 | 9.6 | 13/16 | 20.63 |
| BT-08N | 1/2 | 39.6 | 39.6 | 11.9 | 1 | 40 |