Hubei Fotma Machinery Co., Ltd.
Hubei Fotma Machinery Co., Ltd. Tungsten, Molybdenum, Titanium, Tungsten Carbide and Investment Casting Products
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Professional Tungsten Carbide Mining Tools / Tungsten Carbide Coal Mine Auger Bits
The tungsten carbide mining bits are chosen from the high virgin raw material with submicron and average garin size. The carbide drilling bits have the strict tolerance extent control, which can reach +/-0.01mm. You can choose as per your project from YG6, YG8, YG11, YG15, which are all available. Those tungsten carbide mining bits have the following types such as the standard, conical, parabolic, ballistic and other customized types. The carbide mining bits have the following physical performances, such as the high hardness, impact toughness, great mechanical and chemical stability.
The advantages of the tungsten carbide drilling bits
1. The high wear resistance and impact-resistance
2. The longest service life
3. The high efficiency in penetration of the high medium hard eock formation
4. The lowest labour intensity
5. The greatest and the most wonderful quality
Sizes for carbide button mining bits
| Type | D(mm) | d(mm) | a |
| MBTQ436-722 | 36 | 22 | 7° |
| MBTQ536-722 | |||
| MBTQ438-722 | 38 | ||
| MBTQ538-722 | |||
| MBTQ440-722 | 40 | ||
| MBTQ540-722 | |||
| MBTQ442-722 | 42 | ||
| MBTQ542-722 | |||
| MBTQ851 | 51 | Thread R25 R28 R32 R38 | |
| MBTQ965 | 65 | ||
| MBTQ970 | 70 | ||
| MBTQ1076 | 76 | ||
| MBTQ1489 | 89 | ||
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