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The main structure features of the GHJ Series Tricone bits with metal sealing bearing:
1. This series  adopts non-isometry teeth placement in combination with optimized teeth height and shape.
2. Applying the world’s latest sealing technology - metal face sealing ensures the bearing sealing is more efficient, and more
suitable for drilling at high rotary speed and high tem-perature working condition.
3. New material is applied on the part of gage protecting, and reducing the friction from oil-well-wall, improving quality of
well wall, protecting the back of leg and seal.
4. Bit’s bear is enhance treated, and prolonging the bit working life, reducing the drilling cost.

With Feilong Bits, your drilling shall be easy!