DDD-EF-FB
DDD-EF-FB : Deep Double Tube Drills with External 4-Start Thread Connection for High Feed (25-65 dia.)
| Designation | DCN | DCX | OAL | PL | DCONMS | DRVS  | Ts | Tsi | |
|---|---|---|---|---|---|---|---|---|---|
| DDD-EF 25.00-26.40-FB | 25.00 | 26.40 | 73.00 | 3.00 | 21.00 | 22.0 | TDO-I3 | TDI-N3 | |
| DDD-EF 26.41-28.70-FB | 26.41 | 28.70 | 78.00 | 3.00 | 23.50 | 23.0 | TDO-I4 | TDI-N4 | |
| DDD-EF 28.71-31.00-FB | 28.71 | 31.00 | 78.00 | 3.00 | 25.50 | 24.0 | TDO-I5 | TDI-N5 | |
| DDD-EF 31.01-33.30-FB | 31.01 | 33.30 | 83.00 | 3.00 | 28.00 | 27.0 | TDO-I6 | TDI-N6 | |
| DDD-EF 33.31-36.20-FB | 33.31 | 36.20 | 93.00 | 3.00 | 30.00 | 29.0 | TDO-I7 | TDI-N7 | |
| DDD-EF 36.21-39.60-FB | 36.21 | 39.60 | 99.00 | 4.00 | 33.00 | 32.0 | TDO-I8 | TDI-N8 | |
| DDD-EF 39.61-43.00-FB | 39.61 | 43.00 | 104.00 | 4.00 | 36.00 | 35.0 | TDO-I9 | TDI-N9 | |
| DDD-EF 43.01-47.00-FB | 43.01 | 47.00 | 104.00 | 4.00 | 39.00 | 38.0 | TDO-I10 | TDI-N10 | |
| DDD-EF 47.01-51.70-FB | 47.01 | 51.70 | 114.00 | 4.00 | 43.00 | 41.0 | TDO-I11 | TDI-N11 | |
| DDD-EF 51.71-56.20-FB | 51.71 | 56.20 | 120.00 | 5.00 | 47.00 | 46.0 | TDO-I12 | TDI-N12 | |
| DDD-EF 56.21-60.60-FB | 56.21 | 60.60 | 120.00 | 5.00 | 51.00 | 50.0 | TDO-I13 | TDI-N13 | |
| DDD-EF 60.61-65.00-FB | 60.61 | 65.00 | 120.00 | 5.00 | 51.00 | 55.0 | TDO-I13 | TDI-N13 |
