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About product and suppliers:
        Alibaba.com offers 33,676 diamond core drill products. About 47% of these are drill bit, 6% are electric drill, and 1% are drilling machines. 

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

There are 33,481 diamond core drill 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 respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 12,425 with ISO9001, 4,028 with Other, and 1,628 with ISO14001 certification.