
| DO-I (D18.41-65.00) ouble-Tube Drill System with 4 Start hread Connection Outer Tubes | d L2 d2 | L L min max min max | D5 D3 Outer T Inner Tu | ube be | |||||
| Designation | d Range | D3 | d2 | L2 | Int Tube | d | D5 | Lmin | Lmax |
| TDO-I0 L=(0-630)MM | 18.41-20.00 | 18.00 | 16.00 | 27.50 | TDI-N0 | 12.00 | 10.00 | 0.0 | 630.0 |
| TDO-I0 L=(631-1070)MM | 18.41-20.00 | 18.00 | 16.00 | 27.50 | TDI-N0 | 12.00 | 10.00 | 631.0 | 1070.0 |
| TDO-I1 L=(0-630)MM | 20.01-21.80 | 19.50 | 18.00 | 30.00 | TDI-N1 | 14.00 | 12.00 | 0.0 | 630.0 |
| TDO-I1 L=(631-1070)MM | 20.01-21.80 | 19.50 | 18.00 | 30.00 | TDI-N1 | 14.00 | 12.00 | 631.0 | 1070.0 |
| TDO-I2 L=(0-630)MM | 21.81-24.10 | 21.50 | 19.50 | 30.00 | TDI-N2 | 15.00 | 13.00 | 0.0 | 630.0 |
| TDO-I2 L=(631-1070)MM | 21.81-24.10 | 21.50 | 19.50 | 30.00 | TDI-N2 | 15.00 | 13.00 | 631.0 | 1070.0 |
| TDO-I3 L=(0-630)MM | 24.11-26.40 | 23.50 | 21.00 | 30.00 | TDI-N3 | 16.00 | 14.00 | 0.0 | 630.0 |
| TDO-I3 L=(631-1070)MM | 24.11-26.40 | 23.50 | 21.00 | 30.00 | TDI-N3 | 16.00 | 14.00 | 631.0 | 1070.0 |
| TDO-I4 L=(0-630)MM | 26.41-28.70 | 26.00 | 23.50 | 33.00 | TDI-N4 | 18.00 | 16.00 | 0.0 | 630.0 |
| TDO-I4 L=(631-1070)MM | 26.41-28.70 | 26.00 | 23.50 | 33.00 | TDI-N4 | 18.00 | 16.00 | 631.0 | 1070.0 |
| TDO-I5 L=(0-630)MM | 28.71-31.00 | 28.00 | 25.50 | 33.00 | TDI-N5 | 20.00 | 18.00 | 0.0 | 630.0 |
| TDO-I5 L=(631-1070)MM | 28.71-31.00 | 28.00 | 25.50 | 33.00 | TDI-N5 | 20.00 | 18.00 | 631.0 | 1070.0 |
| TDO-I6 L=(0-630)MM | 31.01-33.30 | 30.50 | 28.00 | 33.00 | TDI-N6 | 22.00 | 20.00 | 0.0 | 630.0 |
| TDO-I6 L=(631-1070)MM | 31.01-33.30 | 30.50 | 28.00 | 33.00 | TDI-N6 | 22.00 | 20.00 | 631.0 | 1070.0 |
| TDO-I7 L=(0-630)MM | 33.31-36.20 | 33.00 | 30.00 | 40.00 | TDI-N7 | 24.00 | 22.00 | 0.0 | 630.0 |
| TDO-I7 L=(631-1070)MM | 33.31-36.20 | 33.00 | 30.00 | 40.00 | TDI-N7 | 24.00 | 22.00 | 631.0 | 1070.0 |
| TDO-I8 L=(0-630)MM | 36.21-39.60 | 35.50 | 33.00 | 40.00 | TDI-N8 | 26.00 | 24.00 | 0.0 | 630.0 |
| TDO-I8 L=(631-1070)MM | 36.21-39.60 | 35.50 | 33.00 | 40.00 | TDI-N8 | 26.00 | 24.00 | 631.0 | 1070.0 |
| TDO-I9 L=(0-630)MM | 39.61-43.00 | 39.00 | 36.00 | 40.00 | TDI-N9 | 29.00 | 27.00 | 0.0 | 630.0 |
| TDO-I9 L=(631-1070)MM | 39.61-43.00 | 39.00 | 36.00 | 40.00 | TDI-N9 | 29.00 | 27.00 | 631.0 | 1070.0 |
| TDO-I10 L=(0-630)MM | 43.01-47.00 | 42.50 | 39.00 | 40.00 | TDI-N10 | 32.00 | 30.00 | 0.0 | 630.0 |
| TDO-I10 L=(631-1070)MM | 43.01-47.00 | 42.50 | 39.00 | 40.00 | TDI-N10 | 32.00 | 30.00 | 631.0 | 1070.0 |
| TDO-I11 L=(0-630)MM | 47.01-51.70 | 46.50 | 43.00 | 44.00 | TDI-N11 | 35.00 | 32.00 | 0.0 | 630.0 |
| TDO-I11 L=(631-1070)MM | 47.01-51.70 | 46.50 | 43.00 | 44.00 | TDI-N11 | 35.00 | 32.00 | 631.0 | 1070.0 |
| TDO-I12 L=(0-630)MM | 51.71-56.20 | 51.00 | 47.00 | 44.00 | TDI-N12 | 39.00 | 36.00 | 0.0 | 630.0 |
| TDO-I12 L=(631-1070)MM | 51.71-56.20 | 51.00 | 47.00 | 44.00 | TDI-N12 | 39.00 | 36.00 | 631.0 | 1070.0 |
| TDO-I13 L=(0-630)MM | 56.21-65.00 | 55.50 | 51.00 | 44.00 | TDI-N13 | 43.00 | 40.00 | 0.0 | 630.0 |
| TDO-I13 L=(631-1070)MM | 56.21-65.00 | 55.50 | 51.00 | 44.00 | TDI-N13 | 43.00 | 40.00 | 631.0 | 1070.0 |
longer than the outer tube For tools, see pages: DDD-EF-FB (613) DDD-EF-FT (613)
| L2 | L2 | |||||||
| TDO-I (D65.00-171.99) | D3 d2 | Outer Tube | ||||||
| Double-Tube Drill System with 4 Start | L min max | |||||||
| Thread Connection Outer Tubes | L d min ma | Inner Tube x | ||||||
| Designation | d Range | D3 | d2 | L2 | Int Tube | d | Lmin | Lmax |
| TDO-I14 L=(0-660)MM | 65.00-66.99 | 56.00 | 52.00 | 75.00 | TDI-N14 | 40.00 | 0.0 | 660.0 |
| TDO-I14 L=(661-1100)MM | 65.00-66.99 | 56.00 | 52.00 | 75.00 | TDI-N14 | 40.00 | 661.0 | 1100.0 |
| TDO-I15 L=(0-660)MM | 67.00-72.99 | 62.00 | 58.00 | 75.00 | TDI-N15 | 44.00 | 0.0 | 660.0 |
| TDO-I15 L=(661-1100)MM | 67.00-72.99 | 62.00 | 58.00 | 75.00 | TDI-N15 | 44.00 | 661.0 | 1100.0 |
| TDO-I16 L=(0-630)MM | 73.00-79.99 | 68.00 | 63.00 | 75.00 | TDI-N16 | 48.00 | 0.0 | 630.0 |
| TDO-I16 L=(631-1070)MM | 73.00-79.99 | 68.00 | 63.00 | 75.00 | TDI-N16 | 48.00 | 631.0 | 1070.0 |
| TDO-I17 L=(0-630)MM | 80.00-86.99 | 75.00 | 70.00 | 97.00 | TDI-N17 | 54.00 | 0.0 | 630.0 |
| TDO-I17 L=(631-1070)MM | 80.00-86.99 | 75.00 | 70.00 | 97.00 | TDI-N17 | 54.00 | 631.0 | 1070.0 |
| TDO-I18 L=(0-630)MM | 87.00-99.99 | 82.00 | 77.00 | 97.00 | TDI-N18 | 60.00 | 0.0 | 630.0 |
| TDO-I18 L=(631-1070)MM | 87.00-99.99 | 82.00 | 77.00 | 97.00 | TDI-N18 | 60.00 | 631.0 | 1070.0 |
| TDO-I19 L=(0-630)MM | 100.00-111.99 | 94.00 | 89.00 | 97.00 | TDI-N19 | 70.00 | 0.0 | 630.0 |
| TDO-I19 L=(631-1070)MM | 100.00-111.99 | 94.00 | 89.00 | 97.00 | TDI-N19 | 70.00 | 631.0 | 1070.0 |
| TDO-I20 L=(0-630)MM | 112.00-123.99 | 106.00 | 101.00 | 118.00 | TDI-N20 | 80.00 | 0.0 | 630.0 |
| TDO-I20 L=(631-1070)MM | 112.00-123.99 | 106.00 | 101.00 | 118.00 | TDI-N20 | 80.00 | 631.0 | 1070.0 |
| TDO-I21 L=(0-630)MM | 124.00-135.99 | 118.00 | 113.00 | 118.00 | TDI-N21 | 80.00 | 0.0 | 630.0 |
| TDO-I21 L=(631-1070)MM | 124.00-135.99 | 118.00 | 113.00 | 118.00 | TDI-N21 | 80.00 | 631.0 | 1070.0 |
| TDO-I22 L=(0-630)MM | 136.00-147.99 | 130.00 | 125.00 | 118.00 | TDI-N22 | 90.00 | 0.0 | 630.0 |
| TDO-I22 L=(631-1070)MM | 136.00-147.99 | 130.00 | 125.00 | 118.00 | TDI-N22 | 90.00 | 631.0 | 1070.0 |
| TDO-I23 L=(0-630)MM | 148.00-159.99 | 142.00 | 137.00 | 139.00 | TDI-N23 | 100.00 | 0.0 | 630.0 |
| TDO-I23 L=(631-1070)MM | 148.00-159.99 | 142.00 | 137.00 | 139.00 | TDI-N23 | 100.00 | 631.0 | 1070.0 |
| TDO-I24 L=(0-630)MM | 160.00-171.99 | 154.00 | 149.00 | 139.00 | TDI-N24 | 120.00 | 0.0 | 630.0 |
| TDO-I24 L=(631-1070)MM | 160.00-171.99 | 154.00 | 149.00 | 139.00 | TDI-N24 | 120.00 | 631.0 | 1070.0 |
than the outer tube. For 124.00-183.99 diameter range, the inner tube should be 220 mm longer than the outer tube.