1.PCD Dome cutter Insert for Hammer Bit in Oil Drilling
2. Oilfield, geology exploring, oil & gas well drilling bits
3. test With ISO certificate & quality control.
Improvement: 1. Diamond thickness is increased to 2.0mm (ZM: 1.7mm), 2. The impact strength is higher than the old series. 3. Wear resistance is a bit higher than old series. 4. Heat resistance is improved to 750 centigrade degrees while previous ZM is 700.
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