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The concept and application of drill bits

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The concept and application of drill bits 

 

    Drill bits are used for directly drilling and breaking rock. Drill rods and drill bits are subjected to tension, compression, bending, twisting and high-frequency impact under the conditions of severe wear by rock, and corrosion by high-pressure water, high-pressure gas and mine water during operation. Therefore drilling tools are indispensable and consumable tools with severe stress conditions, short service life and high technology for basic industry.