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Contact Us
- 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,23# Haiyang North RD.
- Country/Region : China
- Zip : 226500
Spiral drill collar
Product Detailed
Related Categories:Mining Machinery Parts
Detailed Product Description
Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure. brand spiral drill collars are manufactured strictly according to API Spec.7 and Standard SY5144, all mechanical properties meet with above standards.
Sizes 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 |
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