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API hot selling DTH hammer bits/tricone bit/pdc bits pdc buttons made in China for oil well drilling
SIZE | IADC |
| Bearing Type |
3 7/8”(98.4mm) | 126/216 |
| Elastomer sealed bearing |
4 1/2”(114.3mm) | 126/216 |
| Elastomer sealed bearing |
4 5/8”(117.4mm) | 126/216 |
| Elastomer sealed bearing |
5 1/4”(133.3mm) | 126/216 |
| Elastomer sealed bearing |
5 7/8”(142.8mm) | 126/216 |
| Elastomer sealed bearing |
6”(152.4mm) | 126/216 |
| Elastomer sealed bearing |
6 1/2”(165mm) | 126/216 |
| Elastomer sealed bearing |
7 1/2”(190mm) | 126/216 |
| Elastomer sealed bearing |
8 1/2”(215.9mm) | 127/217 |
| Elastomer sealed bearing |
9 1/2”(241.3mm) | 127 |
| Elastomer sealed bearing |
9 5/8”(244mm) | 127 |
| Elastomer sealed bearing |
9 7/8”(250mm) | 127 |
| Elastomer sealed bearing |
10 5/8”(269mm) | 127/137//217 |
| Elastomer sealed bearing |
11 5/8”(295.3mm) | 127/137/217 |
| Elastomer sealed bearing |
12 1/4”(311.1mm) | 127/217 |
| Elastomer sealed bearing |
13 5/8”(346.0mm) | 127 |
| Elastomer sealed bearing |
14 3/4”(374.6mm) | 125 |
| Elastomer sealed bearing |
15 1/2”(393.7mm) | 125 |
| Elastomer sealed bearing |
16”(406.4mm) | 125 |
| Elastomer sealed bearing |
17 1/2”(444.5mm) | 125/215 |
| Elastomer sealed bearing |
