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About product and suppliers:
        Alibaba.com offers 23,625 diamond core drill bit products. About 75% of these are drill bit, 10% are mining machinery parts. 

A wide variety of diamond core drill bit options are available to you, such as carbide, carbon steel, and high carbon steel. You can also choose from free samples, paid samples. 

There are 23,625 diamond core drill bit suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of diamond core drill bit respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 8,170 with ISO9001, 2,659 with Other, and 612 with ISO14001 certification.