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- Contact Person : Mr. Xue aihong
- Company Name : Rugao Yaou Import & Export Trade Co., Ltd.
- Tel : 86-513-87635480
- Fax : 86-513-87632623
- Address : Jiangsu,Rugao,Room 907 #13 Jinjiuhuafu Ninghai RD.
- Country/Region : China
- Zip : 226500
Spiral Drill Collar,drill collar,drilling collar
Related Product Searches:Spiral Drill Collar,drill collar,drilling collar,High Quality,Spiral Drill Collar, drill collar
Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure. spiral drill collars are manufactured strictly according to API Spec.7 and Standard SY5144, all mechanical properties meet with above standards.Spiral Drill Collar,drill collar,drilling collarSizes for drill collar spiral groove.......
O.D. | Cutting depth | Lead±25.4 | ||
Mm | in | A(mm) | B(mm) | mm |
86 | 3 3/8 | 3.5±0.79 |
| 679 |
98.4 | 3 7/8 | 4.0±0.79 |
| 914 |
101.6111.1 | 44 1/8 | 4.8±0.79 |
| 914 |
114.3130.2 | 4 1/25 1/8 | 5.6±0.79 |
| 965 |
133.4146.1 | 5 1/45 3/4 | 6.4±0.79 |
| 1067 |
149.2161.9 | 5 7/86 3/8 | 7.1±1.59 |
| 1067 |
165.1177.8 | 6 1/27 | 7.9±1.59 |
| 1168 |
181.0200.0 | 7 1/87 7/8 | 8.7±1.59 | 5.6±0.79 | 1626 |
203.2225.4 | 88 7/8 | 9.5±1.59 | 6.4±0.79 | 1727 |
228.6250.8 | 99 7/8 | 10.3±2.37 | 7.1±1.59 | 1829 |
254.0276.2 | 1010 7/8 | 11.1±2.37 | 7.9±1.59 | 1930 |
279.4 | 11 | 11.9±2.37 | 8.7±1.59 | 2032 |
Spiral Drill Collar,drill collar,drilling collar
