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地质钻探用各项孔内钻具的质量对钻探工作影响甚大。研究提高钻具质量，延长其使用寿命，对提高钻探工作的经济效益将起到非常重要的作用。也是改善我国钻探装备水平，争取国内外市场的一项迫切工作。
The quality of each hole drilling tool used for geological drilling has a great influence on the drilling work. Research to improve the quality of drilling tools, to extend its service life, to improve the economic efficiency of drilling will play a very important role. It is also an urgent task to improve the level of drilling equipment in our country and win the domestic and foreign markets.