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About product and suppliers:
        Alibaba.com offers 24,963 diamond core drill bit products. About 61% of these are drill bit, 11% are mining machinery parts, and 3% are tool parts. 

A wide variety of diamond core drill bit options are available to you, such as diamond, high speed steel, and cobalt steel alloys. You can also choose from core drill bit, construction tool parts, and center 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 24,831 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 8,078 with ISO9001, 2,766 with Other, and 1,285 with ISO14001 certification.