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About product and suppliers:
        Alibaba.com offers 642 64mm rock drill bit products. About 69% of these are mining machinery parts, 26% are drill bit, and 3% are construction machinery parts. 

A wide variety of 64mm rock drill bit options are available to you, such as carbide, high manganese steel, and carbon steel. You can also choose from drilling tool, drilling equipment. As well as from ore mining, coal mining, and well drilling. And whether 64mm rock drill bit is forging, or casting. 

There are 642 64mm rock drill bit suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of 64mm rock drill bit respectively. 

4mm rock drill bit products are most popular in Africa, Mid East, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 358 with ISO9001, 59 with Other, and 2 with OHSAS18001 certification.