1. For Petroleum /Natural Gas Exploration and Development
Model: 8 1/2 " 8 3/4 " (4 wings 5 wings 6wings)
2. For Geological exploration
A. Core Bits
Model: φ 75 φ 94 φ 113 φ 133 φ 146
φ 152 φ 171 φ 219 φ 273
B. Full-hole Bits
A. A. PDC drill Bits
Model: φ 75 φ 94 φ 113 φ 133 φ 152
B. B. Drag Bits
Model: φ 75 φ 94 φ 113 φ 133
3. For Mining
I. PDC anchor Bits
Model: φ 28 φ 32 φ 42
Degassing hole Bits (tungsten matrix; Steel matrix)
Model: φ 65 φ 75 φ 94 φ 113 φ 133
Exploration Bits
A. Core Bits
B. Full-hole Bits (PDC drill Bits; Drag Bits)
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