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About product and suppliers:
        Alibaba.com offers 26,101 diamond core drill bit products. About 57% of these are drill bit, 11% are mining machinery parts, and 1% are abrasive tools. 

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

There are 25,956 diamond core drill bit suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Japan, and India, which supply 98%, 1%, and 1% of diamond core drill bit respectively. 

Diamond 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 9,187 with ISO9001, 3,106 with Other, and 1,403 with ISO14001 certification.