
| LSCWS | LSCWS | |||||||
| TDO-I (D65.00-171.99) | DCO DCONMS | NWS | Outer Tube | |||||
| Double Tube Drill System | L min max | |||||||
| with 4-Start Thread | ||||||||
| Connection Outer Tubes | d | L min max | Inner Tube | |||||
| Designation | d Range | DCONMS | DCONWS | LSCWS | Int Tube | d | L min | Lmax |
| TDO-I14 L=(0-3700)MM | 65.00-66.99 | 56.00 | 52.00 | 75.00 | TDI-N14 | 40.00 | 0.0 | 660.0 |
| TDO-I15 L=(0-2950)MM | 67.00-72.99 | 62.00 | 58.00 | 75.00 | TDI-N15 | 44.00 | 0.0 | 660.0 |
| TDO-I16 L=(0-3700)MM | 73.00-79.99 | 68.00 | 63.00 | 75.00 | TDI-N16 | 48.00 | 0.0 | 630.0 |
| TDO-I17 L=(0-3700)MM | 80.00-86.99 | 75.00 | 70.00 | 97.00 | TDI-N17 | 54.00 | 0.0 | 630.0 |
| TDO-I18 L=(0-3700)MM | 87.00-99.99 | 82.00 | 77.00 | 97.00 | TDI-N18 | 60.00 | 0.0 | 630.0 |
| TDO-I19 L=(0-3700)MM | 100.00-111.99 | 94.00 | 89.00 | 97.00 | TDI-N19 | 70.00 | 0.0 | 630.0 |
| TDO-I20 L=(0-3700)MM | 112.00-123.99 | 106.00 | 101.00 | 118.00 | TDI-N20 | 80.00 | 0.0 | 630.0 |
| 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 |
tube. For 124.00-183.99 diameter range, the inner tube should be 220 mm longer than the outer tube.
For tools, see pages: DDC-EC (249) DDD-EC (211)
Double Tube system 1ST : Single-start thread 2ST : Double-start thread 4ST : Four-start thread Tube L
D I 4ST D.425 d39 L1600 METRIC
D I 4ST D1.673 d1.535 L62.992 INCH
| I : Inner Thread | Tube ØD | Thread Pilot Ød | ||
| O : Outer Thread | ||||
| Tube ØD | Tube L | |||
| DSLT |
| I | D32 | d30 | L1630 | METRIC |
| DSLT | D1.260 d1.181 L64.173 | INCH |
II
Inner Tube for Thread Pilot Ød Double tube system
DCONMS d D5 d
LSCWS L min max L min L min max max