Hejian Deris Petroleum Drilling Equipment Co.,Ltd

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1. 244mm GAT635G TCI (Tungsten Carbide Insert) tricone drilling bits

Description of the four types TCI Bits(Tungsten Carbide Insert Bit)

1. Metal-face sealed bearing TCI Bit

Cutting Structure
The durability of premium tungsten carbide inserts is improved with new formulas and new

techniques ...

2. Metal sealed journal bearing IADC HJT137 milled tooth tricone rock bits

Model Steel tooth bit
IADC CODE 137
available sizes: From 3 3/4'' to 26''
advantage most favourable price and best qualtity
bearing type: HJ(metal sealed journal bearing)
Formation or layer soft or medium soft
Button size (extra features) ...

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