DTH Adapters
Drill String Adapters Subs are available in a wide range of diameters, lengths, wrenching, and thread size/types.
North Star understands the need to have a versatile range of configurations to connect your drill rods together. We have a wide range of certified thread gages available to accommodate all your configuration needs.
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Specifications
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| Diameter (mm) | Diameter (in) | Length (mm) | Length (in)s | Box Thread | Pin Thread | Wrench Flat Width (mm) | Wrench Flat Width (in) |
|---|---|---|---|---|---|---|---|
| 76 | 3 | 100 | 3.94 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 130 | 5.12 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 160 | 6.3 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 180 | 7.09 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 200 | 7.87 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 220 | 8.66 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 250 | 9.84 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 260 | 10.24 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 280 | 11.02 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 300 | 11.81 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 320 | 12.6 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 340 | 13.39 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 360 | 14.17 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 380 | 14.96 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 400 | 15.75 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 420 | 16.54 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 440 | 17.32 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 460 | 18.11 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 500 | 19.68 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 520 | 20.47 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 76 | 3 | 540 | 21.26 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 100 | 3.94 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 130 | 5.12 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 170 | 6.69 | 2 3/8″ IF | 2 3/8″ IF | A/F65 | 2.5 |
| 89 | 3.5 | 200 | 7.87 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 220 | 8.66 | 2 3/8″ IF | 2 3/8″ IF | A/F65 | 2.5 |
| 89 | 3.5 | 250 | 9.84 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 270 | 10.63 | 2 3/8″ IF | 2 3/8″ IF | A/F65 | 2.5 |
| 89 | 3.5 | 300 | 11.81 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 320 | 12.6 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 350 | 13.78 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 380 | 14.96 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 400 | 15.75 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 430 | 16.93 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 450 | 17.72 | 2 3/8″ IF | 2 3/8″ IF | A/F65 | 2.5 |
| 89 | 3.5 | 480 | 18.9 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 500 | 19.68 | 2 3/8″ IF | 2 3/8″ IF | A/F65 | 2.5 |
| 89 | 3.5 | 530 | 20.87 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 550 | 21.65 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 580 | 22.83 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 600 | 23.62 | 2 3/8″ IF | 2 3/8″ IF | A/F65 | 2.5 |
| 89 | 3.5 | 650 | 25.59 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 680 | 26.77 | 2 3/8″ IF | 2 3/8″ IF | A/F65 | 2.5 |
| 89 | 3.5 | 700 | 27.56 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 730 | 28.74 | 2 3/8″ IF | 2 3/8″ IF | A/F65 | 2.5 |
| 89 | 3.5 | 750 | 29.53 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 780 | 30.71 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 810 | 31.89 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 830 | 32.68 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 860 | 33.86 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 880 | 34.65 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 910 | 35.83 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 89 | 3.5 | 930 | 36.61 | 2 3/8″ API | 2 3/8″ API | A/F65 | 2.5 |
| 102 | 4 | 120 | 4.72 | 2 3/8″ IF | 2 3/8″ IF | A/F75 | 3 |
| 102 | 4 | 140 | 5.51 | 2 3/8″ IF | 2 3/8″ IF | A/F75 | 3 |
| 102 | 4 | 180 | 7.09 | 2 7/8″ API | 2 7/8″ API | A/F75 | 3 |
| 102 | 4 | 210 | 8.27 | 2 3/8″ API | 2 3/8″ API | A/F75 | 3 |
| 102 | 4 | 300 | 11.81 | 2 3/8″ IF | 2 3/8″ IF | A/F75 | 3 |
| 102 | 4 | 360 | 14.17 | 2 7/8″ API | 2 7/8″ API | A/F75 | 3 |
| 102 | 4 | 410 | 16.14 | 3 1/2″ API | 3 1/2″ API | A/F75 | 3 |
| 102 | 4 | 480 | 18.9 | 3 1/2″ API | 3 1/2″ API | A/F65 | 3 |
| 102 | 4 | 520 | 20.47 | 2 7/8″ API | 2 7/8″ API | A/F75 | 3 |
| 102 | 4 | 600 | 23.62 | 2 7/8″ API | 2 7/8″ API | A/F75 | 3 |
| 102 | 4 | 660 | 25.98 | 3 1/2″ API | 3 1/2″ API | A/F75 | 3 |
| 102 | 4 | 700 | 27.56 | 2 7/8″ IF | 2 7/8″ IF | A/F75 | 3 |
| 114 | 4.5 | 120 | 4.72 | 3 1/2″ API | 3 1/2″ API | A/F75 | 3 |
| 114 | 4.5 | 140 | 5.51 | 3 1/2″ API | 3″ BECO | A/F75 | 3 |
| 114 | 4.5 | 180 | 7.09 | 3 1/2″ API | 3 1/2″ API | A/F75 | 3 |
| 114 | 4.5 | 210 | 8.27 | 3″ BECO | 3″ BECO | A/F90 | 3.5 |
| 114 | 4.5 | 300 | 11.81 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 114 | 4.5 | 360 | 14.17 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 114 | 4.5 | 410 | 16.14 | 2 3/8″ IF | 2 7/8″ IF | A/F95 | 3.75 |
| 114 | 4.5 | 480 | 18.9 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 114 | 4.5 | 520 | 20.47 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 114 | 4.5 | 600 | 23.62 | 2 3/8″ API | 2 3/8″ API | A/F95 | 3.75 |
| 114 | 4.5 | 660 | 25.98 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 114 | 4.5 | 700 | 27.56 | 3 1/2″ IF | 3 1/2″ IF | A/F95 | 3.75 |
| 114 | 4.5 | 740 | 29.13 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 114 | 4.5 | 790 | 31.1 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 114 | 4.5 | 820 | 32.38 | 3 1/2″ IF | 3 1/2″ IF | A/F95 | 3.75 |
| 114 | 4.5 | 850 | 33.46 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 114 | 4.5 | 880 | 34.65 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 114 | 4.5 | 910 | 35.83 | 3 1/2″ IF | 3 1/2″ IF | A/F95 | 3.75 |
| 114 | 4.5 | 940 | 37.01 | 2 7/8″ API | 2 7/8″ API | A/F95 | 3.75 |
| 114 | 4.5 | 970 | 38.19 | NC35 | NC35 | A/F95 | 3.75 |
| 127 | 5 | 300 | 11.81 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 127 | 5 | 360 | 14.17 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 127 | 5 | 410 | 16.14 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 127 | 5 | 480 | 18.9 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 127 | 5 | 520 | 20.47 | 3 1/2″ API | 3 1/2″ API | A/F95 | 3.75 |
| 127 | 5 | 600 | 23.62 | 3 1/2″ API | 3 1/2″ API | A/F95 | 4.75 |
| 127 | 5 | 700 | 27.56 | 4 1/2″ API | 4 1/2″ API | A/F95 | 5.75 |
| 127 | 5 | 820 | 32.28 | 3 1/2″ API | 3 1/2″ API | A/F95 | 6.75 |
| 127 | 5 | 910 | 35.83 | 3 1/2″ API | 3 1/2″ API | A/F95 | 7.75 |
| 140 | 5.5 | 300 | 11.81 | 4 1/2″ API | 4 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 360 | 14.17 | 4 1/2″ API | 4 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 410 | 16.14 | 4 1/2″ API | 4 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 460 | 18.11 | 3 1/2″ API | 3 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 520 | 20.47 | 3 1/2″ API | 3 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 600 | 23.62 | 3 1/2″ IF | 3 1/2″ IF | A/F120 | 4.75 |
| 140 | 5.5 | 700 | 27.56 | 4 1/2″ API | 4 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 730 | 28.74 | 3 1/2″ API | 3 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 750 | 29.53 | 4 1/2″ API | 4 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 780 | 30.71 | 4 1/2″ API | 4 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 820 | 32.28 | 3 1/2″ API | 3 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 850 | 33.46 | 3 1/2″ API | 3 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 870 | 34.25 | 4 1/2″ API | 4 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 900 | 35.43 | 4 1/2″ API | 4 1/2″ API | A/F120 | 4.75 |
| 140 | 5.5 | 920 | 36.22 | 3 1/2″ API | 3 1/2″ API | A/F120 | 4.75 |
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