1.Cutting Structure, the wear-resistance of the teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for the steel tooth bit.
2.Hard alloy nozzle, can control the flow of water, reduce the heat in the process of the bit, increase the service life of the bit
3.Screw thread, the upper part of the drill bit is provided with a thread for connecting with the drill string.
4.Hard-coated with a hard alloy layer, this can reduce the bearing wear and greatly improve the service life of the bit
5.Silver-plated, this reduces wear and tear and improves the use of the drill bit compared to traditional processes
6.Professional welding technology, according to the vulnerable point of the bit, we have professional welding personnel to focus on the protection, to provide alayer of protective film for the bit.
Our company is committed to providing high-quality drilling tools, such as roller cone reamers, PDC reamers, tricone drills, engineering palms, PDC drills and scraper drills, etc. The application fields mainly include construction engineering, oil and gas, mining, trenchless underground pipe network engineering, hydrological survey, industrial and agricultural water use, foundation pile engineering, geothermal, etc.
Bit size | API | Marking up torque | Weght | |
Inch | mm | Inch | KN.M | kg |
3 1/2 | 95.3 | 2 3/8 | 4.1-4.7 | 5 |
4 5/8 | 117.5 | 2 7/8 | 6.1-7.5 | 6.5 |
4 3/4 | 120.7 | 7 | ||
5 1/2 | 139 5/7 | 3 1/2 | 9.5-12.2 | 17 |
5 7/8 | 142.9 | 18 | ||
6 | 152.4 | 19.5 | ||
6 1/4 | 158.8 | 19.5 | ||
6 1/2 | 165.1 | 19.5 | ||
6 3/4 | 171.5 | 21 | ||
7 1/2 | 190.5 | 4 1/2 | 16.3-21.7 | 28 |
7 7/8 | 200 | 29.5 | ||
8 1/4 | 209.6 | 38 | ||
8 3/8 | 212.7 | 38 | ||
8 1/2 | 215.9 | 38 | ||
8 3/4 | 222.3 | 40 | ||
9 1/2 | 241.3 | 6 5/8 | 38-43.4 | 57.5 |
9 7/8 | 250.8 | 60 | ||
10 5/8 | 269.9 | 74 | ||
11 | 279.4 | 85 | ||
11 5/8 | 295.3 | 89 | ||
12 1/8 | 304.8 | 94 | ||
12 1/4 | 311.2 | 95 | ||
12 15/32 | 315.9 | 97 | ||
13 1/8 | 333.4 | 120 | ||
13 5/8 | 346.1 | 120 | ||
13 3/4 | 349.3 | 120 | ||
14 5/8 | 368.3 | 7 5/8 | 46.1-54.2 | 160 |
14 3/4 | 374.7 | 160 | ||
15 | 381 | 185 | ||
15 1/2 | 393.7 | 189 | ||
16 | 406.4 | 205 | ||
17 1/2 | 444.5 | 255 | ||
20 | 508 | 443 | ||
22 | 558.8 | 580 | ||
24 | 609.6 | 650 | ||
26 | 660.4 | 810 |