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About product and suppliers:
        Alibaba.com offers 39,559 core drill bit products. About 55% of these are drill bit, 12% are mining machinery parts, and 2% are tool parts. 

A wide variety of core drill bit options are available to you, such as diamond, high carbon steel, and tungsten carbide. You can also choose from core drill bit, center drill bit, and twist drill bit. As well as from well drilling, masonry drilling, and metal drilling. And whether core drill bit is free samples, or paid samples. 

There are 39,244 core drill bit suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Japan, which supply 98%, 1%, and 1% of core drill bit respectively. 

Core drill bit products are most popular in North America, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 14,126 with ISO9001, 5,069 with Other, and 2,809 with ISO14001 certification.
        
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