
| T | (Wrench Size) | ||||||
| DDD-EF-FT Deep Double Tube Drills with External 4 Start Thread Carrying Triangular Inserts | D | d | |||||
| Eh1 | L | ||||||
| Designation | Dmin | Dmax | L | Eh1 | d | Ts(1) | Tsi(2) |
| DDD-EF 18.40-20.00-FT | 18.41 | 20.00 | 61.00 | 3.00 | 16.00 | TDO-I0 | TDI-N0 |
| DDD-EF 20.01-21.80-FT | 20.01 | 21.80 | 63.50 | 3.20 | 18.00 | TDO-I1 | TDI-N1 |
| DDD-EF 21.81-21.99-FT | 21.81 | 21.99 | 63.50 | 3.20 | 19.50 | TDO-I2 | TDI-N2 |
| DDD-EF 22.00-24.10-FT | 22.00 | 24.10 | 65.50 | 3.40 | 19.50 | TDO-I2 | TDI-N2 |
| DDD-EF 24.11-25.00-FT | 24.11 | 25.00 | 65.50 | 3.40 | 21.00 | TDO-I3 | TDI-N3 |
| DDD-EF 25.01-26.40-FT | 25.01 | 26.40 | 67.50 | 3.60 | 21.00 | TDO-I3 | TDI-N3 |
| DDD-EF 26.01-28.00-FT | 26.41 | 28.00 | 70.50 | 3.60 | 23.50 | TDO-I4 | TDI-N4 |
(1) Outer tube designation (2) Inner tube designation For inserts, see pages: TOGT (650) For holders, see pages: TDO-I (D18.41-65.00) (629)
| DDD-EF-FB Deep Double Tube Drills with External 4 Start Thread for High Feed | T Wrench size | D Eh1 | d L | |||||
| Designation | Dmin | Dmax | L | Eh1 | d | T | Ts(1) | Tsi(2) |
| DDD-EF 25.00-26.40-FB | 25.00 | 26.40 | 70.00 | 3.00 | 21.00 | 19.0 | TDO-I3 | TDI-N3 |
| DDD-EF 26.41-28.70-FB | 26.41 | 28.70 | 75.00 | 3.00 | 23.50 | 21.0 | TDO-I4 | TDI-N4 |
| DDD-EF 28.71-31.00-FB | 28.71 | 31.00 | 75.00 | 3.00 | 25.50 | 24.0 | TDO-I5 | TDI-N5 |
| DDD-EF 31.01-33.30-FB | 31.01 | 33.30 | 80.00 | 3.00 | 28.00 | 26.0 | TDO-I6 | TDI-N6 |
| DDD-EF 33.31-36.20-FB | 33.31 | 36.20 | 90.00 | 3.00 | 30.00 | 28.0 | TDO-I7 | TDI-N7 |
| DDD-EF 36.21-39.60-FB | 36.21 | 39.60 | 95.00 | 4.00 | 33.00 | 30.0 | TDO-I8 | TDI-N8 |
| DDD-EF 39.61-43.00-FB | 39.61 | 43.00 | 100.00 | 4.00 | 36.00 | 32.0 | TDO-I9 | TDI-N9 |
| DDD-EF 43.01-47.00-FB | 43.01 | 47.00 | 100.00 | 4.00 | 39.00 | 36.0 | TDO-I10 | TDI-N10 |
| DDD-EF 47.01-51.70-FB | 47.01 | 51.70 | 110.00 | 4.00 | 43.00 | 38.0 | TDO-I11 | TDI-N11 |
| DDD-EF 51.71-56.20-FB | 51.71 | 56.20 | 115.00 | 5.00 | 47.00 | 46.0 | TDO-I12 | TDI-N12 |
| DDD-EF 56.21-60.60-FB | 56.21 | 60.60 | 115.00 | 5.00 | 51.00 | 50.0 | TDO-I13 | TDI-N13 |
| DDD-EF 60.61-65.00-FB | 60.61 | 65.00 | 115.00 | 5.00 | 51.00 | 54.0 | TDO-I13 | TDI-N13 |
separately Ordering example: DDD-EF 043.00-FB (1) Outer tube designation (2) Inner tube designation For inserts, see pages: NPHT-RG (622) NPMT-L2/R2 (621) For holders, see pages: TDO-I (D18.41-65.00) (629)